Aws-syndicate

Changed
- Add AWS Batch support
- Add external resources support
- Add parameter binary_media_type for API Gateway resource type

Changed
- Updated Python project examples
- Added integration request parameters for API Gateway
- Added request validator for API Gateway
- Fixed a lost first zero issue due to incorrect work `syndicate init` command for AWS accounts, which start at zero.
- Added the ability to add `logs_expiration` parameter in lambda_config.json.
- Update Java version in Travis builds

Changed
- Fixed the error related with absent parameter `session_duration` in `sdct.conf`

Changed
- Added parameter `session_duration` to `sdct.conf` for setting session duration while role assuming

Changed
- Fixed DynamoDB LSI check while building bundle
- Fixed deployment of CloudWatch Rules

Added
- Add required mark (asterisk) for required parameters in 'Help' section for `syndicate generate lambda` and `syndicate generate project` commands
- Add validation for the empty `lambda_name` parameter in `syndicate generate lambda` command

Changed
- Removed `traceback` from response after attempting to generate lambda without `project_path` parameter by `syndicate generate lambda` command
- Remove `traceback` from response after attempting to generate lambda for non exist project by `syndicate generate lambda` command