Restructure Menus

.. added Edit for all ride data processors now we
   have quite a few to select from

.. shifted a few things around to make important
   options more prominent (e.g. Share) and less important
   ones less prominent (e.g. Heat Map)
Merge branch 'master' of https://github.com/GoldenCheetah/GoldenCheetah
Merge pull request #1133 from amtriathlon/master

Pace zone shading and binning for running activities in speed histogram
Merge branch 'master' of https://github.com/GoldenCheetah/GoldenCheetah