Initial commit for Dropbox module.
Basic dropbox working. Does not support retrieving files in the GUI.
Switched back to using a Map to store the file index.
Slight refactoring of controllers and observers. Still no support for saving a file locally.
Files can now be saved from the Dropbox onto the user's local computer.
Added check to make sure the file is not too large (more bytes than the maximum size of an Integer).
Initial merge of git://github.com/chriscasola/wpi-suite-tng.git dev-dropbox