refactoring for tags started, some backend changes
Merge branch 'master' of github.com:bryntum/fiesta
some progress
Merge branch 'master' of github.com:bryntum/fiesta

Conflicts:
	media/js/fiesta/view/Main.js
Merge branch 'master' of github.com:bryntum/fiesta
some fixes
Merge branch 'master' of github.com:bryntum/fiesta
Merge branch 'master' of github.com:bryntum/fiesta