Removing warnings under Xcode 4.6

Signed-off-by: Daniel Garcia <fillito@gmail.com>
Removing warnings under Xcode 4.6

Signed-off-by: Daniel Garcia <fillito@gmail.com>
Merge pull request #805 from minube/pull_request/removing_xcode_warnings

Removing warnings under Xcode 4.6
Beginning to add some icons to the project.
Added icons to all of the sample applications. I was getting bored with white squares.