work against #42, so far works only on program, source document and annotation content. updated bootstrap to version 3.2 so added multiselect plugin can work.
scrollable minifeed so on lot's of entry it doesn't eat half of page
work against issue #41 so far works only if input in annotation is found. I thought it would be much easier but i got stucked with hibernate search.
Merge origin/develop into develop

Conflicts:
	mathmlcaneval-backend/src/main/java/cz/muni/fi/mir/db/service/FormulaService.java
	mathmlcaneval-backend/src/main/java/cz/muni/fi/mir/db/service/impl/FormulaServiceImpl.java
	mathmlcaneval-frontend/src/main/java/cz/muni/fi/mir/controllers/FormulaController.java