MAGN-90
MAGN-177 : Fixed Broken Pan keyboard control

Cause of deflect: Due to unintended chaining of event handler that goes into infinite loop.
Solution: Remove the executation of chaining callback method and rewire them to prevent chaining.
MAGN-110
Merge pull request #496 from l2obin/MAGN-177-BrokenPanShortcutKey

MAGN-177 : Fixed Broken Pan keyboard control
Small change to Structural Framing description
MagnOLD-53
Merge branch 'master' of github.com:ikeough/Dynamo
Merge branch 'master' into DynEditBox

Conflicts:
	src/DynamoCore/UI/UIPartials.cs