iOS 6 margins on iOS 7

snippet.m

- (void)applyLegacyBoundries
{
    /*  In iOS 7, UIKit will automatically
     *  put content beneath navigation bars.
     *  It also tries to pad scroll views
     *  and table views to make them
     *  scroll nicely beneath them.
     *
     *  These two checks will fix them.
     *
     *  For iOS 6 compatibility, we need to
     *  check if the view controller class
     *  actually responds to the relevant
     *  methods. (If not, we'll crash
     *  when calling them.)
     */
    
    if ([self respondsToSelector:@selector(setEdgesForExtendedLayout:)]) {
        [self setEdgesForExtendedLayout:UIRectEdgeNone];
    }
    
    if ([self respondsToSelector:@selector(setAutomaticallyAdjustsScrollViewInsets:)]) {
        [self setAutomaticallyAdjustsScrollViewInsets:NO];
    }
    }