Bump to version 0.4.5

Merge pull request square#163 from square/federman/bump_podspec

Bump podspec to 0.4.4

Bump to v0.4.3 for podspec

Bump podspec to v0.4.2

Merge pull request square#143 from square/mthole/fix-warnings

Fix warnings and deprecations; fix "(null)'s Simulator" issue; stop spamming log warnings

Merge pull request square#123 from wlue/master

Update README and PodSpec for v0.4.0

Merge pull request square#97 from wlue/v0.3.1

Update README for v0.3.1

Fix typo.

Updating readme for tagging

Merge pull request square#37 from Flipboard/master

Fix for Issue square#35