Remove old controller board layout that is out of date
Update Controller Board Layout

- add sense line for external power
- move components for easier placement
- reroute long lines
- flip backup battery orientation to allow for easy insertion
- move cap away from crystal to avoid shorts
Begin document tracking board layout requirements
Initial microsim pad layout for checking against 3d model
Update board layout document
Revise GSM module to include pic16lf1847, microsim

Also updated layout for better reflow and moved
traces further from board edges.
Add gitattributes to protect sch,brd,lbr files
Fix multisensor board layout

- Add separate power supply for analog circuitry to
maintain voltage requirement.
- Fix data line connection on MIB bus
- Remove incorrect pin headers
Touches on gsm_module
Update version numbers
Update revision number to 2.0 in multi_sensor
Fix screw hole positions to match polycase and be symmetrical

Actual screw spacing should be 3.744" not 3.8".
Update part descriptions for automatic BOM generation
Add 3 pin headers for serial and turbine connector

Update RJ11 to different compatible model since the other was
backordered.
Add label text for new controller version.
Update copper restrict and add label text
Merge pull request #98 from timburke/feature-board-updates

Update GSM, Controller and Multisensor Boards