Lock SVPullToRefresh dependency version

`JMStatefulTableViewController` is incompatible with later 
versions of `SVPullToRefresh` due to a complete redesign.
Update SVPullToRefresh in Demo project podfile
Ignore Pods directory
Ignore local DerivedData/
Update SVPullToRefresh for iOS 6.0 PTR Fix
Version Bump 0.1.1
Ignore Pods/ directory
Merge branch 'fix-ios6-ptr'
Merge pull request #3 from shekibobo/master

Fix iOS6 PTR Crash and cleanup CocoaPod settings