css improvements

- use css classes instead of declaring styling tags in JS
- use more css instead of characters in messaging UI
- remove unnecessary $location parameter
online users ordering
add full name support to messaging
preliminary user portrait support
improve user portrait CSS
improve full name support
replace src with ng-src

prevents bad requests
display message time as tooltip
fixed profile problem
Fix fullname injection from Plone
fix typo "potrait" -> "portrait"
add full name to your username display
Generate .defaultPortrait
Portraits
modify portrait display and fix typos (again)
fix
Merge pull request #13 from reebalazs/improve_messaging3

Improve messaging3