Added the bcrypt support for password/secret encryption
Cleaned up formatting and grammar in README
CS fixes (php-cs-fixer)

- EOF endings
- trailing whitespace
- indentation
Fixes to OAuth2 PDO extension

- Ensure `verify()` method is called on bcrypt instance in
  `checkPassword()`
- Added docblocks
CS fixes

- add trailing comma
- remove empty line
Merge branch 'feature/bcrypt'

Merge bcrypt feature