Update libosg to latest version to remove link error

Add dylibs for libosg
Tweaks
Do not force a re-qmake every time
Fix view of float/double values in QuickView
Broadcast estimated battery time remaining
Better default parameters to show
Better calculation of estimated battery time remaining to overcome short-term voltage measurement spikes
Improve battery remaining time by resetting startTime when higher voltage is read
Add qmake stash file to gitignore
Settings View: Fixes #401 incomplete label display in settings
Settings View: Add checkbox to enable 'beta' releases
Autoupdate: Add check for update type

The update type can be 'stable' or 'beta'. It will also allow adding 'daily' in the future if required
QGCCore: Fix to remember if update is 'beta' or 'stable'
Autoupdate: Fix debug message
configuration: update to 2.0.14-rc2
Autoupdate: Fixes RC version compare
configuration: update to 2.0.14-rc3
configuration: update JSON object for 'beta' releases
QuickView Widget: Fixes #405 rounding error in HDOP and COG values
MAP Widget: Changes to support better zooming sensitivity (slider)