Admin tabs to bootstrap, refs #1073.

Bootstrap hide issue solved, closes #1140
Enable debugger code.
define required variables. refs #1145 @rgasch @drak please review
Asset paths needs a leading / refs #1088
add additional icon colors and overlay positioning
Merge pull request #1146 from craigh/Ticket_1145

define required variables.
Merge pull request #1147 from craigh/icon-css

[css] add additional icon colors and overlay positioning
Delete .DS_Store
Special hack for support of potential Symfony PR

This is todo with the Traceablity of Events.
Merge pull request #1148 from phaidon/admintab-bootstrap

Admin tabs to bootstrap, refs #1073.
Remove old logging for Symfony.
Add imports
Merge pull request #1150 from zikula/remove_log

Remove legacy log code
Remove unused listeners.
Remove dependence on old Loader deprecated API.
Remove dependence on old Loader deprecated API.
Mark API as deprecated
Move APIs which look like they need to be deprecated.
Add alias fixed #1153
Obfuscating emails is a pointless exercise