Deduce Devise scope from _current user. Fixes #1386, partly.

If you configure Devise with sign_out_all_scopes = false,
and authenticate with a scope that's different from the default one (like :admin) the sign out link did not work. This fixes that.

Unfortunately i did not figure out how to add a helper spec for this.

TODO: Add a logout_path and logout_method option to RailsAdmin.config and fallback to this code.
Merge pull request #1477 from ahx/deduce-devise-scope-from-current-user

Deduce Devise scope from _current user. Fixes #1386, partly.
Remove copyright notice and footer
Add Gem Version badge
HTTP Pledgie badge [ci skip]
breadcrumbs fix
Update app/views/rails_admin/main/_form_filtering_select.html.haml

fix layout issue - buttons should appear to right of select element
Fix jQuery 1.9 compatibility
Merge pull request #1486 from charlieschwabacher/master

Fix layout issue for associations in edit forms
Merge pull request #1487 from ai/jquery19

jQuery 1.9 compatibility
Merge pull request #1485 from dalpo/boostrap-breadcrumbs

Bootstrap breadcrumbs visualization fix
Merge pull request #1480 from stephendavis89/patch-2

Remove copyright notice and footer
Bump version to 0.4.2
Fix jQuery 1.9  parse error
Merge pull request #1489 from gokure/master

Fix $(html) parse error for jQuery 1.9
fix double loading of assets in dev mode, fix jQuery 1.9 integration, freeze remotipart js to a jQuery 1.9 compatible version, update & fix timepicker for jQuery 1.9 compatibility
rename *.css.scss -> *.scss
Bump version to 0.4.3
remove useless files [ci skip]
Merge remote-tracking branch 'upstream/master'