Initialise members of BrowserApi. Coverity.
Initialise float m_relativeSize() in the constructor. Value chosen is extremely arbitrary. Coverity.
Initialise callbacks in MythUIHelperPrivate constructor. It was done anyway a few moments later. Coverity
Check return value of FindThemeFile() when loading an image.
It is redundant to call indexIn() after exactMatch() for QRegExp, as exactMatch() will also populate capturedTexts(). Coverity (indirectly)
Initialise m_pixelAspectRatio in DisplayRes. Coverity.
Media Monitor: tell all handlers when a device status changes to MEDIASTAT_OPEN

This changes the media monitor to tell all handlers when a devices status
changes to MEDIASTAT_OPEN even if that handler doesn't support the current
media type.

This is necessary because the media type sometimes changes to MEDIATYPE_UNKNOWN
when a CD is ejected for example so the music media handler never gets to know
the CD has been ejected because it is only set to handle MEDIATYPE_AUDIO.
MythMusic: rip out the CDWatcherThread

We will use the media monitor instead now it seems to be more stable.
MythMusic: remove some redundant CD stuff from PlaylistContainer
Coverity warning: if a cast failed, ConnectBackend() will be called with a null.
Likelihood of 0.1%, but there was once a compiler bug that did this for events.
Coverity: m_SendEvent not init'd after 972a8d2d14056689a056d592954fde8838588b28
(which removed it from everywhere except OS X code)
Coverity: "Structurally dead code."
Since about a year ago in the UTC merge(?), checkTimeZone() has done nothing,
which means some helper static functions can also go.
MythMusic: reinstate the media handler for CD playback

The media handler will detect when a CD is inserted and depending on the
'Automatically Play CDs' setting will either show the music playback screen
and start playing the CD or the tracks will be remembered allowing the user
to manually add them to the playlist either from the Quick Playlists->From CD
menu option or I'll add a node to the playlisteditor screen so they can be
added from there as well.

Note: bumps the ABI so a re-compile is necessary.
MythMusic: Add a CD node to the playlist editor

If a CD is inserted add a node to the playlist editor tree showing the CD's
tracks which can be added/replaced to the active playlist the same as other
tracks.
MythMusic: Add an icon for the CD node in the playlist editor

Themers Note: this add a new 'cd' state to the 'nodetype' statetype in
the button list used for the playlist_tree.
MythMusic: don't flag EOF from av_read_frame() as an error in avfDecoder
MythMusic: rename some variables in avfDecoder to match our coding standards
Initialise m_filesize in the radio stream ctor of MusicMetadata

Fixes Coverity 1023898 Uninitialized scalar field
Check albumart_image is not NULL in MusicMetadata::getAlbumArtFile()

Fixes Coverity ID 1023882 Dereference after null check.

This would appear to be false positive in that if res is not empty then
albumart_image cannot be NULL anyway.
Fix what looks like a copy/paste error in MetaIO::readFromFilename()

Fixes Coverity ID 1023881 Copy-paste error.