Add play toggle to SpaceRecordingViewModel
added hotkey to delete the selected description or space
Disable slider when muted
Rename vars
Localize hard-coded strings
Refactor SetWindowTitle
Merge branch 'master' of github.com:IMDC/LiveDescribe-Desktop
fixed msgbox that pops up when project is modified and window is exited
Merge branch 'master' of https://github.com/IMDC/LiveDescribe-Desktop into exporting
Add Play/Stop content converter
Add BoolToContentConverter

Removes the need for having a unique implementation for choosing
content based off of a single bool.
Add BoolToContentConverter UnitTests
Merge branch 'master' of https://github.com/IMDC/LiveDescribe-Desktop into exporting
exporting works