Update README.md
Update FirstTopViewController.m

Added shadowPath for performance reasons
animated transition between top views
Merge commit '9333d134ae4e22536067103febf695fa7c5d6b6f'
Merge commit '82f02cff1fd55b5f4e2a584eb07d1cd62768dafa'

# By Wouter
# Via Wouter
* commit '82f02cff1fd55b5f4e2a584eb07d1cd62768dafa':
  Update README.md
Merge commit 'b3fb56e9283249337c1a9c7127bf49104b55febc'

# By Wouter
# Via Wouter
* commit 'b3fb56e9283249337c1a9c7127bf49104b55febc':
  Update FirstTopViewController.m