OO-363 OO-371 Fix stale blog entry error when editing from old cached item, incorrect items in navigation, navigation styles

OO-388 OO-371 Show correct logged in user count also without IM, remove AJAX icon which clutters the UI

OO-272 OO-371 svg loader with alpha transparency (thanks stephan clemenz), use modernizr to detect browser features to better support IE7/8

OO-291: implement the popup to manage the areas in a course, add first draft of the rights management

OO-180,OLAT-6627: add the list of authors with link to the visit cards, add the soft key for administrators

OO-219 add css markup to better differentiate between done tests and running tests, fix empty table styles

FXOLAT-452, OO-1: fix some css issues. remove gradient-filter rules for legacy IE browsers, they do not work correctly

OO-1 : adjust memberslist coursenode css.  minor fixes : titlewrapper info-icon in courserun (single page)

--HG--
branch : 80-patch

OO-1, OO-2 : fix SCORM decorators in SCORM-navigation tree ( I decided to use the same icons as in course-editor, although we are not that happy with the "incomplete icon" )

--HG--
branch : 80-patch