Fixed issues 5-7 in email:
For screens with width <= 1280px, plugin width is smaller and search bar collapsed by default.
Search bar open/collapsed status persists when user selects different target or moves through browser history.
'Whiteout' effect when saving an annotation covers whole page.

Other minor fixes and changes.
Merge branch 'master' of https://github.com/charmeproject/charme_plugin

Conflicts:
	CHARMe_plugin/src/plugin/js/charme.web.controllers.js
Merged changes