Add a basic base64 encoding implementation.
Change the default report address to point at my test twilio endpoint.
Weirdest bug ever.  We were running really short on data memory, and this manifested by random crashes when the STACK got to big.  I removed some unused code (I2C) and shuffled some things around but we're going to need to be really careful and test all code paths from here on out - running out of stack space is bad.
Merge branch 'dev' of https://github.com/timburke/welldone-nozzle into dev