[WO-634] Added 'lmtp' option to use LMTP protocol instead of SMTP for local delivery
Merge pull request #18 from whiteout-io/dev/wo-634

[WO-634] Added 'lmtp' option to use LMTP protocol instead of SMTP for local delivery
Fix: Sinon prebuilt broken in AMD usage
Remove useless sinon require shim
bump version
Use chrome.sockets.tcp