Merge pull request #1 from vokal-isaac/master

Initial implementation of bencode/bdecode pod
Merge pull request #2 from vokal-isaac/master

Activate Travis.
Merge pull request #3 from vokal-isaac/master

Fix the scheme name (stupid cocoapods pod lib template).
Avoiding implicit casts from long long to NSUInteger and guarding against case where string length exceeds NSUIntegerMax.