Change Countdown Cancel string
added dependency properties to space and description control
added some shortkeys to menuitems
seperated recording and stop recording to two seperate commands
Add WPM setting to SpaceRecorder

There is now the option to record only for the duration that it takes
to say the words at the current words per minute.
Always set Karaoke speed based on given WPM
Disable controls in SpaceRecorder when recording
Use UiStrings Resource
Button to play and pause is now toggable
Change SpaceRecorder Layout
Merge branch 'master' of github.com:IMDC/LiveDescribe-Desktop into valdev

Conflicts:
	LiveDescribe/LiveDescribe/LiveDescribe.csproj
	LiveDescribe/LiveDescribe/Resources/UiStrings/UiStrings.resx
added System.Threading to mainwindow
added handling of exception in spacerecordingviewmodel
added logging information about the exception
added support for exporting space and description text to srt file