Renamed LHTableViewController to LHSlideBar.
Added ability to setup slide bar with subclassed version or use default setup version.
Merge branch 'master' of https://github.com/Baza207/LHSlideBar
Stared updating LHSlideBar to handle 2 slide bars (left and right).

• Added left and right variables.
• Added separate left and right methods where needed.
• Added left and right buttons in demo.
• Disabled pan gesture after first 2 slide bar attempt (until that part has been gotten to).

### Know Bugs
• When dismissing a slide bar, if a view from the previous slide bar is showing then it gets over written by the VC at the current index of the newly dismissed slide bar.
• Transform animation on right slide bar is going the wrong way.
• Reimplement pan gesture for 2 slide bars.
Made 1 test view controller that can be customised to look look different as well as fixing bug where both slide bars were controllers.

• Removed un-need extra test view controllers.
• Removed use for swapViewControllerAtIndex: and swapViewController: for dismissSlideBar: and dismissSlideBar:atIndex:
• Used new TestViewController to set up 6 VCs, 3 in each slide bar.
Added some new showSlideBar: method in line with the new dismissSlideBar: methods.
Fixed rotate transform going the wrong way when opening right slide bar.
Merge branch 'master' of https://github.com/Baza207/LHSlideBar
Added a let and right view controllers setter method.
Re-enabled touch dragging of slideBars with 2 slideBars added to the controller.
Fixed bug where drag animation time remaining was incorrect.
Renamed swappingVCIndex: to swapToIndex:
Updated README file for changes with adding 2 slideBar support and improvements.