Correctly pass Pod::VERSION during pod lib create

Fix CHANGELOG

- Moved the sub-project extension enhancement from 1.0.1 to 1.1.0.beta.2
- Made my name consistent Ben Asher instead of benasher44

Fix linting on Xcode 8

Fixed pod repo push validation and push issues related to Dir.chdir

[Validator] Improve Spec Performance

[Acknowledgements] Prevent crash when license type is nil

[Create] Pass the Pod::version as a ENV var for the configure script to read

Make analyzer skip the embedded target -> host compatibility check for hosts not defined in the Podfile