Fix event pump order on ios when we drop in deeper message loop.
[rbp] Fix for hang after seeking introduced by ASS fix

#2206 introduced a regression when seeking in some types of SD files where the video stutters and/or stalls.
This is caused by using the wrong clock in FlipPage
[droid] Fix event pump order on droid when we drop in deeper message loop.
Merge pull request #2167 from ulion/ios_event_pump_in_order_fix

Fix event pump order on ios when we drop in deeper message loop.
Merge pull request #2245 from popcornmix/fix_video_fifo_ass

[rbp] Fix for hang after seeking introduced by ASS fix
Fix for AlarmClock(): Prevent freeze-up when time <=0 and loop = true
Merge pull request #2247 from phil65/alarmclock-fix

Fix for AlarmClock(): Prevent freeze-up when time <=0 and loop = true
Combine 2 CGUIWindowManager::SendThreadMessage methods with default param.