Reviewed-by: Trust Me

Reviewed-by: dt

- clear up some Q_OS_LINUX vs. Q_OS_UNIX
- clear up Q_WS_* vs. Q_OS_* (relatively theoretical exercise)
- use proper #if-#else cascades instead of free-standing #ifs

Reviewed-by: dt

Enable Plugins and JavaScript in the embedded help viewer to make it possible to embed flash videos in the documentation

Reviewed-by: Kavindra Devi Palaraja <kavindra.palaraja@nokia.com>

Task:     - found by Denis
RevBy:    - Thomas
AutoTest: - manual
Details:  - we have some broken doc entrys, they won't return a url at all

Task:     - found by Denis
RevBy:    - Thomas
AutoTest: - manual
Details:  - we have some broken doc entrys, they won't return a url at all

RevBy:    - dt

RevBy: Eike