First pass at making inbox messaging use encryptAndSign
Committing so I can merge this change to another branch to test message encryption/decryption
updated encrypt-sign-messages-inbox branch with diff from dead-sdrop-app branch
cleaned up debugging output and commented-out code
reomved missing columns in message table
Merge branch 'master' of github.com:SpiderOak/crypton into encrypt-sign-messages-inbox
2 more instances of hmac signature colums removed
Fixed code as per ecto comments
Merge branch 'encrypt-sign-messages-inbox' of github.com:SpiderOak/crypton into encrypt-sign-messages-inbox
make encryptAndSign integration for messages backward compatible
Merge pull request #166 from SpiderOak/encrypt-sign-messages-inbox

First pass at making inbox messaging use encryptAndSign