Sumologic-sdk

Added
- Added content management and lookup apis via PR62

Added
- Added content sync apis via PR41

Added
- Added search job deletion support via PR24
- Added support for metrics queries via PR25
- Added new parameter byReceiptTime to create search job api
- Added new get_available_builds function via PR55

Changed
- Fixed import issue for py27/py36 users via PR22
- Improved exception messages for delete, post, put via PR31

Breaking Changes
- Removed content create,delete and get methods.

- Merged PR18,20

- Fixed cookielib incompatiblity with python3 via PR17

Fixed
- pip install issue cause by ez_setup reference.