Remove ytsearch (not needed)
Add itemsearch to the library
Move itemsearch to the js folder (needed for each individual plugin)
Change videosearch to itemsearch
Fix addButton name so it matches the folder name
Fix css to use an image for the search icon rather than FontAwesome
Rename variables to guarantee there is no clash with future plugins
Remove unnecessary / from paths
Move displayYouTubeSearchPage() method into separate file
Rename player.png to contents.png for clarity

Also fix placeholder css to be consistent with other plugins
Remove unnecessary click binding
Clean up nav2 code
Merge pull request #8 from ox-it/youtube

Youtube
Copy common files in the plugins into a separate common folder

common is for dependencies for general plugins
common-wl is for dependencies for weblearn plugins
Merge branch 'master' of github.com:ox-it/wl-ck-plugins
Remove unnecessary test file (to prevent conflicts)
Remove youtube plugin from merge
Add file-tree css to common-wl
Add images for file-tree.css file and fix urls
Merge branch 'master' into oxam