Merge pull request #14 from abauer/master

Logs and switching fragments
Updated git ignore
Merge branch 'master' of https://github.com/mbartling/Cal
Added some basic matlab functions for movement detection system
Removed the DBDevFragment. Now, NthSense binds to dataService and requests data sent every 32 entries.
Tested matlab scripts with other peoples profiles
Added basic communication audio engine (TOY) + Columbia FFT library. Still need to test + integrate into system. Need to write channel processing scheme and come up with digital coding method and possibly error correction. currently considering Reed solomon block code, will depend on how noisy the channel is.