v0.2.0

This release focused on increasing testability, adding documentation and completing the files and folders endpoints.

Changes:

• ProgressListeners for downloads. ProgressListeners can be provided in order to monitor the progress of long-running downloads.
• Custom fields support. Custom fields can be provided when getting info about a file or folder.
• New Javadoc documentation and guides. The Javadocs for the SDK can now be found on GitHub along with some styling improvements. There are also some new guides on getting started with the SDK.
• Complete file and folder endpoints. Most operations related to files and folders are now complete. There are still a few other methods (such as getting comments and tasks) which will be implemented when their dependent resource types are implemented.
• Increased test coverage. Added test coverage reports, full logging for all API requests and responses and fixed some bugs discovered by the new tests.