DVDVideoCodecAmlogic: Remove throttling of MPEG2 playback

* 56ebbc6 introduced logic in place for playback conditions on the Amlogic
  devices. However, after this commit was merged MPEG2 streams started to
  be HW decoded and thus throwing off the logic put in place to accomodate
  direct .VOB playback.
* Remove the MPEG2 width check and let amcodec handle the playback if all
  else checks out

Signed-off-by: Brandon McAnsh <brandonm@matricom.net>
[AMLCodec] Add support for panel display output

On Amlogic tablets /sys/class/display/mode is set to panel.
To read width and height of screen (dynamically), we have
to parse /sys/class/display/axis
[PVR] Changed EpgInfoTag::[IsActive|WasActive|InTheFuture] to take
      timeshifting into account. Fixes wrong event info shown at
      several places in kodi UI when timeshifting (e.g. Video OSD).
Use "system.playlistspath" setting instead of default library one in CFileUtils
RunScript: execute even if addon isn't a script type addon

..for backwards compatibility. Deprecate and warn about this behaviour instead.
log when RunAddon is called with invalid addon id/type and no addon will be started
[skininfo] fix uninitialized members in CSkinsInfo constructor

Fixes coverity CID 719106
[pvr] fix possible resource leak in channels osd dialog

Fixes coverity CID 1223318
[pvr] fix uninitialized members in CPVRGUIInfo constructor

Fixes coverity CID 1228840
[settings] fix possible null ptr dereference in CGUIDialogSettingsBase::SetupControls

Fixes coverity CID 1215664
[paplayer] fix possible resource leak in QueueNextFileEx

Fixes coverity CID 1126041
[cpuinfo] fix possible divide-by-zero

Fixes coverity CID 1238515
[nfsfile] fix arg type mismatch

Fixes coverity CID 1250595
[rendermanager] fix possible null ptr dereference in CXBMCRenderManager::GetOptimalBufferSize()

Fixes coverity CID 1243594
[vaapi] fix missing break in switch
[curl] Avoid busy spinning when socket timeout is too low

This is an RFC as I don't know this code well, but my investigation may provoke a better fix.
See: http://forum.kodi.tv/showthread.php?tid=201797&pid=1771808#pid1771808

Summary: when streaming audio through http the cpu usage starts low and creeps higher and higher.

For first minute, the CPU usage of FileCache thread is a few percent.
As time goes by the cpu usage for this thread increases until it hits about 60% and we start stuttering.

Disabling the filecache (buffermode=3) avoids the high cpu issue.

I've tracked down where the cpu is occurring.
CCurlFile::CReadState::FillBuffer is called with want=1.
After a while, g_curlInterface.multi_timeout returns smaller and smaller timeouts,
until it it just returning 0 and 1 for timeout. This results in busy spinning in this function.
The small timeouts mean small amounts of data are read and so FillBuffer gets called more often.

My fix just ensures the timeout is never less than 200ms.
Now stream plays for a long time without stuttering and FileCache thread remains at about 1% CPU.
[xml] 'action' type setting should not require 'id' attribute
remove unused variable
fix uninitialized variable
[Keyboard layouts] Add Portuguese QWERTY