Added more debugging statements to help in resolving crypto bugs

There is one bug related to decoding public keys as well as a
negative array index that I can't seem to solve, hoping more
logging will provide additional clues.
Merge branch '1.3.0-dev' of github.com:tinfoilhat/tinfoil-sms into 1.3.0-dev
Merge branch '1.3.0-dev' of github.com:tinfoilhat/tinfoil-sms into 1.3.0-dev