Aws-syndicate

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

Added
- Syndicate now supports configurations in YAML: syndicate.yml and syndicate_aliases.yml; The old ones (sdct.conf, sdct_alises.conf) are still supported.
- Syndicate configuration generation. Command `syndicate init --help`
- Python/Java/NodeJS project generation. Command `syndicate generate project --help`
- Python/Java/NodeJS lambda generation. Command `syndicate generate lambda --help`
- All commands from group `generate` and the command `syndicate init` are able to be executed without provided `SDCT_CONF` variable

Changed
- All bundles now are stored to `$SDCT_CONF/bundles`folder.

Added
- Version option. 'syndicate --version' is now available.
- Docs for commands.
Changed
- fixed an issue of 'The role defined for the function cannot be assumed by Lambda' while creating lambda right after the role for the lambda was created. https://github.com/epam/aws-syndicate/issues/63