Remove whitespace
Add and set EngineKeyDistance ControlObject in keycontrol.cpp
Compute distance to the nearest key and return it along with the key in a QPair object
Display the distance to the nearest key WKey widget. Currently it is displaying the same value for both loaded tracks. Haven't figured out how to solve this
Modify WKey constructor to take a const char* as a first parameter
Implement parseEngineKey method to create a WKey widget
Notification on passthrough enabling if hardware not connected
Fix for default arguments in constructor again.
Split apart vc passthrough and aux.
Use a ControlPotmeter instead of a ControlObject for visual_key_distance and store the cent difference as a double
Fix mixxxkeyboard so it clears its list if a dialog is shown by Mixxx.
Add a qDebug() operator<< for ConfigKeys!
Make the display of cents configurable from the skin
BUG 1303719 resize tagfetcher dialog correctly

https://bugs.launchpad.net/bugs/1303719
This seems to be an issue how QDesigner creates layouts with seperated
QWidgets for me. For Qt to pick up resizing hints correctly the *.ui xml
should look like this.

<widget ...>
 <layout ...>
  <item>
   ...
  </item>
  <item>
   ...
  </item>
 </layout>
</widget>

and for documentation reasons here is the non working version

<widget ...>
 <widget class="QWidget" name="somelayout">
  <layout ...>
   <item>
    ...
   </item>
   <item>
    ...
   </item>
  </layout>
 </widget>
</widget>
replace inheritance of Timer by a placement new into a member variable.
This way we can still use the scope natur of the ScopedTimer but can add a condition to skip timer when not needed.
Added overloaded constructors, in a way that CPU usage is minimized without --developer set
Some cleanups
Merge pull request #226 from daschuer/scopedTimer

Scoped Timer speed up if not used
Merge pull request #225 from kain88-de/tagfetcher-resize

BUG 1303719 resize tagfetcher dialog correctly
Don't process EQ until the user actually changes an EQ value.  Saves
CPU for our many users who never touch the controls.
TESTED=hand tested, didn't hear popping when the changeover happens
Fix various invalid indices due to calculating "size() - 1" on empty containers.