moving selection feature from campaign app in
remove unneeded logfile
move identical githubhandle setter and getter into modul
add Role.includes?
require reviewer role for applications index
add "reviewer" to other roles
refactor routes with roles concern
add role editing to user#edit
show "Applications" link for reviewers in navigation
show misc info only on show page
make additional info editable
fixing header styling
style selection part
set different strong params on update
Merge branch 'master' into selection-feature
Merge branch 'master' into selection-feature

Conflicts:
	app/controllers/applications_controller.rb
cleanup db after rolescope tests
Merge pull request #96 from rails-girls-summer-of-code/selection-feature

Selection feature