support menu title is changeable

SINavigationMenuDelegate interface changed
  < - (void)didSelectItemAtIndex:(NSUInteger)index;
  > - (void)didSelectItem:(SINavigationMenuView *)menuView atIndex:(NSUInteger)index;

add setTitle in SINavigationMenuView
Bump version

   v1.0.1
-> v1.0.2
Merge pull request #3 from iwazer/enable-change-title

Enable change title