Changed the dropdown selector

Dropwdown deleted, now a three-button-group

Replaced the image with open source image
Merge remote-tracking branch 'upstream/master'
Added autocompletion + first draft of related

Added first draft of related and autocompletion
change the gitignore file
Improve the search for related
Changed a bit of css and the close of completion

Changed the css of the WITHOUT button

Now close the autocomplete widget when pressing ENTER
Merge remote-tracking branch 'upstream/master'
Modification of gitignore file
Merge pull request #6 from tcomte/master

Modification of the filtering tab with automplete on the UI and linked words