Update copyright to 2021

Update conf.py

…nect method

There are small typos in:
- examples/analytics/bottle.py
- examples/analytics/js/jquery.flot.selection.js
- examples/async/async.py
- examples/handlers/tiny-proxy.py
- examples/job.py
- splunklib/binding.py
- splunklib/client.py
- tests/test_job.py

Fixes:
- Should read `caught` rather than `catched`.
- Should read `preferable` rather than `preferrable`.
- Should read `parallelism` rather than `paralleism`.
- Should read `instantiate` rather than `instanciate`.
- Should read `first` rather than `frist`.
- Should read `default` rather than `defaut`.
- Should read `available` rather than `avaialble`.
- Should read `assignments` rather than `assignemnts`.
- Should read `also` rather than `allso`.

docs: Fix a few typos

Per the description here https://martin-thoma.com/software-development-stages/ it seems like we're in at least "5 - Production/Stable" and maybe "6 - Mature". I'm putting this up as a PR instead of committing directly so that anyone interested can discuss before we update. 

Addresses @rfaircloth-splunk 's #385

- added import statement so we can use splunklib from lib directory

Update random_number.py

Added dictionary support for KVStore "insert" and "update" methods. Change with reference to issue #355 . KVStore example also updated

Added dictionary support for KVStore "query" methods. Change with reference to issue #356   . KVStore example also updated

Updated KVStore Methods

Updated kvstore method

Fix for Issue#361

- set fail-fast: false so GitHub will not cancels all in-progress jobs if any matrix job fails.

Move CI tests in Python SDK to Github Actions from TravisCI

Easy_install is deprecated. This is to address #263

- Replace deprecated apps/appinstall endpoint with apps/local

Passing input Kind as multiple modular inputs have "input" with name "default"

Fix test case failure for 8.0 and latest(8.2.x) splunk version

Remove usage of Easy_install to install SDK

Updating development status past 3

#380 Implemented the possibility to provide a SSLContext object to the connect method

Fix spelling error

Added support to process empty records