better resize handles in media manager

improved media options css (and removed lots of dead css code)

added styles for general tabs (to be used in mediamanager and other components)

media manager design: added icon to resizing handle and changed background colour

media manager design: more spacing and some colour changes

media manager design: improved some spacing

media manager design: added headline

issue #57, function names, params, html fixes

issue #44 uploader fixes, #45 browser testing

issue #44 new uploader in the media popup

issue #50 styling uploader

issue #51 detail.php p tag fixed

old fileuploader.css deleted

mediamanager html bug fixes

issue #50 styling the new uploader

issue #51 link from detail view to fullscreen manager

issue #50 partly styling the new uploader

issue #44 uploader css fix

issue #45 browser testing

issue #44 fileuploader specific changes made in inheriting class

issue #43 images align

issue #44 multi file uploader

issue #43 diff slider

css class name fix

issue #40 image resized in all diff views