make 'My Repos' come before 'Recent' in sidebar
Revert "Remove sidebar elements, which need to query API"

This reverts commit d0009176f984a4c12d621ee62391be2794e20fa9.
Fix minor spelling mistakes
Add placeholder for search input
Revert "Revert "Remove sidebar elements, which need to query API""

This reverts commit e6b85620543f8736252b7f956e9de2b6673ed01e.
Comment failing tests, sidebar is temporarily limited.
Sign out user before running tests
A few improvements for tabs on repos list

* if user is logged out, the default tab should be 'recent'
* when user logs in, the tab is switched to 'my repositories'
* when user logs out, my repositories is hidden again and tab is
  switched to 'recent'
Merge branch 'fionatay-master'
Update log engine
Don't send Authorization header when it's not needed

CORS specification specifies "simple request", which does not need a
preflight OPTIONS request. The only thing, which we send and is
forbidding to send simple requests is Authorization header, which is not
needed for public endpoints.
POST requests should always require auth