updates api endpoints and uses wix instances
Added comments to functions and functions to make them easy to understand.
Added retry and cancel buttons in case of failure in upload; started working on adding files look
Changed test text settings to default settings
Merge pull request #14 from jeffreywix/Feature-FailureCSSElem

Failure: Added design elems for failure cases and made widget controller easier to understand
Changed design to make add files button work
Implements ansync resumable file upload to Google Drive
implements resume of file upload to google drive on error
Merge pull request #15 from andreywix/Feature-AsyncResumableFileUpload

Feature - Asynchronous Resumable file upload
Feature: Added file uploading to browser (not yet to backend server) using angular-file-upload library. All uploaded files are listed.
Fixed syntax error in bower.json file
cleans up unnecessary code
implements sessions database
Merge pull request #17 from andreywix/Feature-Sessions

Feature - Sessions
Most of the code for file uploading to the server is now set up.
Added error messages for not adding a message or any files
Merge pull request #16 from jeffreywix/Feature-FileUpload

Feature file upload
adds files database and handling of individual file uploads
Added functions in controller for dealing with aborting file uploads and keeping track of progress. Also fixed issues that would have prevented user from doing multiple file uploads.
organizes the server into modules