diff --git a/.npmignore b/.npmignore
@@ -1,4 +1,22 @@
-/doc/
+/build/
 /example/
-/node_modules/
+/generate/
 /test/
+/vendor/libgit2/
+/vendor/libssh2/
+/vendor/http_parser/
+/vendor/Release/
+
+.astylerc
+.editorconfig
+.gitignore
+.gitmodules
+.jshintrc
+.travis.yml
+.appveyor.yml
+
+*.vcxproj
+*.filters
+*.sln
+*.log
+*.md
diff --git a/.travis.yml b/.travis.yml
@@ -23,6 +23,8 @@ before_script:
  - chmod 600 ~/.ssh/id_rsa*
  - eval `ssh-agent -s`
  - ssh-add ~/.ssh/id_rsa
+ - git config --global user.name "John Doe"
+ - git config --global user.email johndoe@example.com
 git:
   depth: 1
 branches:
@@ -35,3 +37,9 @@ script: npm test
 notifications:
   slack:
     secure: KglNSqZiid9YudCwkPFDh+sZfW5BwFlM70y67E4peHwwlbbV1sSBPHcs74ZHP/lqgEZ4hMv4N2NI58oYFD5/1a+tKIQP1TkdIMuq4j2LXheuirA2HDcydOVrsC8kRx5XFGKdVRg/uyX2dlRHcOWFhxrS6yc6IxtxYWlRTD2SmEc=
+  webhooks:
+    urls:
+      - https://webhooks.gitter.im/e/cbafdb27ad32ba746a73
+    on_success: always  # options: [always|never|change] default: always
+    on_failure: always  # options: [always|never|change] default: always
+    on_start: false     # default: false
diff --git a/appveyor.yml b/appveyor.yml
@@ -14,6 +14,8 @@ clone_folder: c:\projects\nodegit
 # fix lineendings in Windows
 init:
   - git config --global core.autocrlf input
+  - git config --global user.name "John Doe"
+  - git config --global user.email johndoe@example.com
 
 # what combinations to test
 environment:
@@ -39,3 +41,13 @@ test_script:
   - cmd: npm test
 
 build: off
+
+notifications:
+  - provider: Slack
+    auth_token:
+      secure: ZsaMCvRMfDZhNsiUvZtvszXXF3z4pLIGJmAj5MuDaa40JvmMC6wnBWIR+LHJuJPM
+    channel: nodegit
+
+branches:
+  only:
+    - master
diff --git a/install.js b/install.js
@@ -48,7 +48,7 @@ function systemPath(parts) {
 }
 
 // Will be used near the end to configure `node-gyp`.
-var pythonPath = '/usr/bin/python';
+var pythonPath = "";
 
 var local = path.join.bind(path, __dirname);
 
@@ -58,12 +58,7 @@ var paths = envOverride({
   libgit2: local("vendor/libgit2/"),
   libssh2: local("vendor/libssh2/"),
   http_parser: local("vendor/http_parser/"),
-  sys: {
-    include: local("include/sys/"),
-    src: local("src/sys/"),
-    build: local("build/Release/obj.target/src/sys/")
-  },
-  release: local("build/Release/")
+  release: local("build/Release/"),
 });
 
 // Load the package.json.
@@ -76,8 +71,7 @@ if (NODE_VERSION === 0.1) {
 fse.ensureDir(path.resolve(__dirname, paths.release))
 .then(detectNodeWebkit.call(null, __dirname))
 .then(fetch)
-.then(finish, compile)
-.done()
+.then(finish, compile);
 
 function fetch() {
   console.info("[nodegit] Fetching binary from S3.");
@@ -104,83 +98,103 @@ function compile(err) {
 
   console.info("[nodegit] Determining dependencies.");
 
-  return python()
-    .then(getVendorLib("libgit2", "https://github.com/libgit2/libgit2/tarball/" + pkg.libgit2.sha))
-    .then(getVendorLib("libssh2", pkg.libssh2.url))
-    .then(getVendorLib("http_parser", pkg.http_parser.url))
-    .then(buildNative)
-    .then(finish, fail);
-
+  return Promise.all([
+    python(),
+    getVendorLib("libgit2", "https://github.com/libgit2/libgit2/tarball/" + pkg.libgit2.sha),
+    getVendorLib("libssh2", pkg.libssh2.url),
+    getVendorLib("http_parser", pkg.http_parser.url),
+    guardGenerated()
+  ])
+  .then(buildNative)
+  .then(finish, fail);
 }
 
 function python() {
-  return exec("which python2")
+  var pathFinderCommand = process.platform === "win32" ? "where" : "which";
+
+  return exec(pathFinderCommand + " python2")
     .then(function(which){
       return which;
     }, function(err) {
       return null;
     })
     .then(function(path) {
-      return path || exec("which python");
+      return path || exec(pathFinderCommand + " python");
     })
-    .then(function(which) {
-      return which;
+    .then(function(path) {
+      return path;
     }, function(err) {
       return null;
     })
     .then(function(path) {
-      pythonPath = path.trim();
-      if (!pythonPath) {
+      if (!path) {
         throw new Error("Python is required to build libgit2.");
       }
+      return path.trim();
+    }, function(err) {
+      throw new Error("Error finding python.");
     })
-    .then(function() {
-      return exec(pythonPath + " -V 2>&1");
+    .then(function(path) {
+      pythonPath = path;
+      return exec(path + " -V 2>&1");
     })
     .then(function(version) {
-      if (version[1].indexOf("Python 3") === 0) {
+      if (version.trim().indexOf("Python 3") === 0) {
         throw new Error("Incorrect version of Python, gyp requires < 3.");
       }
     });
 }
 
 function getVendorLib(name, url) {
-  return function() {
-    var version = pkg[name].sha || pkg[name].version;
-    console.info("[nodegit] Detecting vendor/" + name + ".");
-    if (fse.existsSync(paths[name] + version)) {
-      console.info("[nodegit] vendor/" + name + " already exists.");
-      return new Promise(function(resolve, reject) {resolve() });
-    }
-    else {
-      console.info("[nodegit] Removing outdated vendor/" + name + ".");
-      return fse.remove(paths[name])
-        .then(function() {
-          return new Promise(function (resolve, reject) {
-
-            console.info("[nodegit] Fetching vendor/" + name + ".");
+  var version = pkg[name].sha || pkg[name].version;
+  console.info("[nodegit] Detecting vendor/" + name + ".");
+  if (fse.existsSync(paths[name] + version)) {
+    console.info("[nodegit] vendor/" + name + " already exists.");
+    return Promise.resolve();
+  }
+  else {
+    console.info("[nodegit] Removing outdated vendor/" + name + ".");
+    return fse.remove(paths[name])
+      .then(function() {
+        return new Promise(function (resolve, reject) {
 
-            var extract = tar.Extract({
-              path: paths[name],
-              strip: true
-            });
+          console.info("[nodegit] Fetching vendor/" + name + ".");
 
-            request.get(url).pipe(zlib.createUnzip()).pipe(extract)
-              .on("error", reject)
-              .on("end", resolve);
+          var extract = tar.Extract({
+            path: paths[name],
+            strip: true
           });
-        }).then(function() {
-          return fse.writeFile(paths[name] + version, "");
-        }).then(function() {
-          if ((name == "libssh2") && (process.platform !== "win32")) {
 
-            return exec(paths[name] + "configure", {cwd: paths[name]});
-          }
+          request.get(url).pipe(zlib.createUnzip()).pipe(extract)
+            .on("error", reject)
+            .on("end", resolve);
         });
-    }
+      }).then(function() {
+        return fse.writeFile(paths[name] + version, "");
+      }).then(function() {
+        if ((name == "libssh2") && (process.platform !== "win32")) {
+          return exec(paths[name] + "configure", {cwd: paths[name]});
+        }
+      });
   }
 }
 
+function guardGenerated() {
+  return Promise.all([
+    fse.stat(path.resolve(__dirname, "src/")),
+    fse.stat(path.resolve(__dirname, "include/"))
+  ]).then(function() {
+    return Promise.resolve();
+  }, function() {
+    console.info("[nodegit] C++ files not found, generating now.");
+    console.info("[nodegit] Installing all devDependencies");
+    return exec("npm install --ignore-scripts --dont-prepublish")
+      .then(function() {
+        return exec("node generate");
+      });
+  });
+}
+
 function buildNative() {
   return exec("cd " + __dirname).then(function() {
     if (nodeWebkit) {
@@ -221,7 +235,21 @@ function detectNodeWebkit(directory) {
 
 function finish() {
   console.info("[nodegit] Completed installation successfully.");
-  return Promise.resolve().done();
+  if (!buildOnly) {
+    console.info("[nodegit] Cleaning up");
+    return Promise.all([
+      fse.remove(path.resolve(__dirname, "src")),
+      fse.remove(path.resolve(__dirname, "include")),
+      fse.remove(path.resolve(__dirname, "generate/output")),
+      fse.remove(path.resolve(__dirname, paths.libgit2)),
+      fse.remove(path.resolve(__dirname, paths.libssh2)),
+      fse.remove(path.resolve(__dirname, paths.http_parser))
+      // exec("npm prune --production")
+    ]).done();
+  }
+  else {
+    return Promise.resolve().done();
+  }
 }
 
 function fail(message) {

diff --git a/package.json b/package.json
@@ -60,14 +60,8 @@
     "node-pre-gyp"
   ],
   "dependencies": {
-    "combyne": "~0.6.2",
     "find-parent-dir": "^0.3.0",
     "fs-extra": "^0.12.0",
-    "istanbul": "~0.3.2",
-    "js-beautify": "^1.5.4",
-    "jshint": "~2.5.6",
-    "lodash": "^2.4.1",
-    "mocha": "~1.21.4",
     "nan": "~1.3.0",
     "node-gyp": "~1.0.2",
     "node-pre-gyp": "~0.5.27",
@@ -77,6 +71,14 @@
     "request": "~2.45.0",
     "tar": "~1.0.1"
   },
+  "devDependencies": {
+    "mocha": "~1.21.4",
+    "combyne": "~0.6.2",
+    "istanbul": "~0.3.2",
+    "js-beautify": "^1.5.4",
+    "jshint": "~2.5.6",
+    "lodash": "^2.4.1"
+  },
   "binary": {
     "module_name": "nodegit",
     "module_path": "./build/Release/",
@@ -91,8 +93,9 @@
     "generateJson": "node generate/scripts/generateJson",
     "generateNativeCode": "node generate/scripts/generateNativeCode",
     "generateMissingTests": "node generate/scripts/generateMissingTests",
+    "prepublish": "node prepublish",
     "publish": "node-pre-gyp package && node-pre-gyp publish",
-    "install": "node generate && node install",
+    "install": "node install",
     "recompile": "BUILD_ONLY=true npm install",
     "rebuild": "BUILD_ONLY=true node generate && node-gyp configure build"
   }

diff --git a/prepublish.js b/prepublish.js
@@ -0,0 +1,8 @@
+var exec = require('child_process').exec;
+try {
+  require("./build/Release/nodegit");
+  console.info("[nodegit] Nothing to do.")
+}
+catch (e) {
+  exec("node generate");
+}
diff --git a/test/index.js b/test/index.js
@@ -10,4 +10,6 @@ var args = [
 
 require("child_process").fork("../node_modules/istanbul/lib/cli.js", args, {
   cwd: __dirname
+}).on("close", function(code) {
+  process.exit(code);
 });
diff --git a/test/tests/merge.js b/test/tests/merge.js
@@ -213,7 +213,10 @@ describe("Merge", function() {
       });
     })
     .then(function() {
-      return repository.mergeBranches(ourBranchName, theirBranchName);
+      return repository.mergeBranches(
+        ourBranchName,
+        theirBranchName,
+        ourSignature);
     })
     .then(function(oid) {
       assert.equal(oid.toString(),

diff --git a/test/tests/repository.js b/test/tests/repository.js
@@ -7,6 +7,7 @@ describe("Repository", function() {
 
   var Repository = require("../../lib/repository");
   var Index = require("../../lib/index");
+  var Signature = require("../../lib/signature");
 
   before(function() {
     var test = this;
@@ -58,4 +59,10 @@ describe("Repository", function() {
       assert.equal(branch.shorthand(), "master");
     });
   });
+
+  it("can get the default signature", function() {
+    var sig = this.repository.defaultSignature();
+
+    assert(sig instanceof Signature);
+  });
 });