Change navigation handling

* Removed page refresh when no repo is selected
Route according to navigation
Add comments & remove console.logs
Merge pull request #69 from piatra/navigation-crumbs

Full navigation URL support
reverse past_months results for more intuitive reading
refactor issues_without_comments
refactor issues_assigned_to
debug off; handle 500
new query - untouched issues
move insights code to own file
extract function for issues activity
new insight : untouched issues
issue title in untouched issues
rename to untouched issues
inactive issues api
generic issue list template
drop js-land reversing
insight widget: inactive issues
emphasise readme
add eventlet to api server cmd