GUI element rearrange + Channel Controller

 Added more to Channel Controller and rearranged GUI elements
Merge pull request #3 from chipaudette/master

Fixing FFT Units and some header comment text
Merge pull request #4 from chipaudette/master

Add accelerometer receive and logging, per Joel's request
Merge pull request #5 from chipaudette/master

disable accelerometer scale factor
Channel Controller & Hardware Syncing Additions
Resolved conflicts
Merge pull request #6 from OpenBCI/ChannelController

Merging Channel Controller & Hardware Sync
Merge pull request #3 from OpenBCI/master

Merging from OpenBCI/OpenBCI_Processing