Merge pull request #674 from wprater/master

Added `fallbackSelector` and `loadingSelector` to constructor instance options
Fix docs sidebar.
Merge branch 'master' of github.com:chaplinjs/chaplin
Fix coffee in js docs. Closes gh-675.
Add View::optionNames which has a list of all options that will be picked from constructor.
Fixed docs for `optionNames` override example.