WCoverArt - fixing bug introduced by last changes - qMakePair cannot receive empty qstring as ""
DlgCoverArtFullSize - remove margins and spacings
DlgTrackInfo - implements closeEvent - closing DlgCoverFullSize when DlgTrackinfo is being closed
DlgTrackInfo - allow revert cover art change (when changes are canceled)
- WCoverArtMenu emits signal when coverLoc changes
- DlgTrackInfo update the current coverLoc and hold the old one
- if the user cancel the changes... It use the oldLoc to retrieve the initial cover
WCoverArt - removing method setToDefault()
- after the last changes it is not doing anything that won't could be done directly
WCoverArt cleanup - try getting pixmap directly from "requestPixmap"(return) + remove m_bDefaultCover + simplify slots + cosmetic fixes
WCoverArt - show context-menu (wcoverartmenu) only when WCoverArt is right clicked
increments MIXXX_SOUNDSOURCE_API_VERSION

This branch changed the soundsource api in order to allow cover art extraction.
This version must be incremented to avoid some segfaults that can occur when the user has other branch linked to versions without coverArt support...
WCoverArtMenu - implements method to show the menu + do not open it when the trackId is invalid
The method show(...) will be responsible to get the position and the other parameters as well.
In this way, callers do not need to call updateData() and exec()...
It is also important that all callers do not use popup() or exec() any more...
WCoverArtMenu - hide showFullSize action when the current cover is the default one
Create the aliases inside EffectsManager::addEqualizer instead of hard coding them in MixxxMainWindow::createCOAliases
Merge branch 'master' of github.com:badescunicu/mixxx into eq_rack
Cosmetic fix : CoverArtCache - renaming croppedPixmap to croppedSize
Cosmetic fix : CoverArtCache - renaming "tryLoadAndSearch" to "onlyCached"
cosmetic fix - renaming signal/slot to lock CoverDelegate - using "onlyCachedCoverArt" instead

it is just a small fix to make it more readable... the logic keeps the same, but the name makes more sense...
CoverArtCache - fixing bug introduced by the last changes (renaming to "onlyCached")
CoverArtCache - holding md5hash from the queue if it contains the trackId
- it improves the performance (a lot) because it return the cover faster (as it's already loaded, it does not need to wait the db operation)
Merge branch 'master' of git://github.com/mixxxdj/mixxx into variables_svg
CoverArtCache - request repaint when cover changes
CoverArtCache - remove qtimer to control db updates + updating db only after collect 500 tracks + adapting changeCover(..) to this change
- needs more work! it needs to store everything before the destruction