Reenable navigator
Fix prev and next handling in navigator
Add goToFirst and goToLast
Add navigator.goTo() logic
Add sentenceList directive
Enable navigator to switch between list and editor
Add some containers for editor and list
Temporary hack to bring up the sentence list
Styling of sentence list
Add sentence directive
Use newest main template in staging
Complete update of staging config
Fix navbar dropdown
Clean selections when state is removed
Handle style changes properly in token
VERY dubious bug - watch out for this

A token can be undefined in the token directive - it's not really clear
who makes such a cool. We have to search for this carefully - could be
a leak.
Create head watches on the fly in dependency Tree

When the tokens change, we need to update our watches, otherwise we'll
see no movement in out tree once we navigate to a new sentence.
Merge pull request #119 from latin-language-toolkit/navigation_again

Navigation enabled again