Cull dead code and resources
Prevent unit test build failures

Sad: There are no unit tests.

Sadder: Even though there are no unit tests, we
still had build failures in the unit test scheme.
Remove Mersenne Twister from acknowledgements

There is a corresponding dmz change to remove the
MT code.
Merge pull request #3 from card-io/cleanup

Cleanup
update dmz
remove CardIOString.h/.m
CardIODevice: add note re iOS 6 and iPhone 3GS
add swift example
Merge branch 'swift-example' into develop
fix library search path
use modules to help link frameworks automatically
remove extra blank lines
use correct header
Merge pull request #6 from romk1n/develop

Swift Example code
add README.md for Swift sample app
Eliminate `develop` branch