SCIPAD-2933 Added a reset for global navigation when switching main navigation instead of just pushing/popping a view controller
Merge pull request #15 from walmartlabs-samsclub/release/2014-9

SCIPAD-2933 Added a reset for global navigation when switching main navi...
SCIPHONE-1893 Hopefully fixes one of our bigger crashers for Sam's Club
Merge pull request #117 from walmartlabs-samsclub/master

Refactored locking around request dictionaries. Quick global navigation fix