Sevenbridges-python

- Fix `__eq__` method for main resources.

- Fix small bug for interruptible instances.

- Added support for managing volume permissions.
- Added support for listing volume content.
- Added support for interruptable instances
- Added support for Enterprise account features.
- Added support for Advance Access Features
Note that now all Advance Access features will be only enabled if its
specified on the config level or explicitly when instantiating API object.
- All resources now implement deepcopy method to provide a way to copy an resource instance.
- `__eq__` method overridden on first level models (project, tasks etc) to allow easy comparision and enable `in` operator for Collection resources.
- Added primitive file content methods that downloads file and retrieves content.
- Update requests version 2.18.3.
- Documentation is updated to reflect new changes.
- Multiple tests added for both old and new resources.

- Backwards incompatible changes
- Duration of download/upload is not in milliseconds.
- `copy` method is removed from Input/Output model.

- Bugfixes
- [Issue 93](https://github.com/sbg/sevenbridges-python/issues/93)

- Added documentation on how to query public apps.
- Added marker documentation.
- Fixed missing query params from apps query.

==================
- Added Contributors notice.
- Added Actions service calls. Users are now able to send feedback to Sevenbridges and bulk copy files. Tests included.
- Added markers service calls. Users are now able to set,get,modify and delete markers on bam files. Advance Access feature - Possibility to be changed in the future.
- Travis setup.

- Bugfixes
- [Issue 80](https://github.com/sbg/sevenbridges-python/issues/80)
- [Issue 81](https://github.com/sbg/sevenbridges-python/issues/81)
- [Issue 82](https://github.com/sbg/sevenbridges-python/issues/82)
- [Issue 84](https://github.com/sbg/sevenbridges-python/issues/84)
- [Issue 86](https://github.com/sbg/sevenbridges-python/issues/86)
- [Issue 88](https://github.com/sbg/sevenbridges-python/issues/88)

==================
- Bugfixes
- [Issue 72](https://github.com/sbg/sevenbridges-python/issues/72)
- [Issue 75](https://github.com/sbg/sevenbridges-python/issues/75)
- [Issue 77](https://github.com/sbg/sevenbridges-python/issues/77)
- [Issue 78](https://github.com/sbg/sevenbridges-python/issues/78)