Added a property to customize the width of the master VC.
Expose view border properties
Merge pull request #2 from Raizlabs/SB-CustomBorderControls

Expose view border properties
Readonly getters for master/detail VCs
Merge branch 'JL-CustomMasterWidth' of https://github.com/Raizlabs/RZSplitViewController into JL-CustomMasterWidth
Merge branch 'refs/heads/master' into JL-CustomMasterWidth

Conflicts:
	RZSplitViewController/RZSplitViewController.m
Merge pull request #3 from Raizlabs/JL-CustomMasterWidth

Custom master width and border customization