Includes CHRegisters for the challenge and signature characteristics

Merge pull request #2 from chronicled/dy.updated-registers

add registers for challenge and signature characteristics

Proper Podspec

0.2.1

Merge branch 'master' of https://github.com/chronicled/IOTScanner

Version 0.2.0

Merge branch 'master' of https://github.com/chronicled/IOTScanner