Remove unused local method 'unquote'
Fix virtual function to proper signature for QXmlAttributes reference and prevent hiding.
Merge branch 'master' of https://github.com/mtbkeith/GoldenCheetah

# By Mark Liversedge
# Via Mark Liversedge
* 'master' of https://github.com/mtbkeith/GoldenCheetah:
  Added RideCache
  Introduce the RideCache
  Turn off interval hover on leave
Merge pull request #1188 from mtbkeith/master

code cleanup of build warnings