Solved all issues in xcode 6

Solved deprecated sizeWithFont:constrainedToSize
Solved warnings of const to NSString
Solved warning when using int in nslog

Added only show the swipe hint view if swipeToDismissEnabled is true
When no icon image change the textPadding, to show it near the border.
Merge branch 'master' of github.com:wanchopeblanco/MPGNotification into wanchopeblanco-master
corrections & adjustments