CLC-3590 Add bundler to gemfile
Merge pull request #2368 from ctweney/clc-3590

CLC-3590 Add bundler to gemfile
CLC-3528 - Created method to return filtered external applications list
CLC-3528 - Added API feed for external applications
CLC-3528 - Updated Canvas::ExternalTools#public_list to output hash
CLC-3528 - Updated user course provisioning app name
CLC-3528 - Added CORS headers to CanvasController#external_tools
CLC-3528 - Working on replacement function
CLC-3528 - Updated Canvas-README with notes on Javascript modification dependencies
CLC-3528 - Adding code to modify button