Changes
/* Guides */
* TBS intro http://fpvlab.com/forums/showthread.php?265-Team-BlackSheep-system-setup-philosophies
* https://youtu.be/gRSPFYlKo58 How to build Retracts for Quadcopters/multirotors
* Focus your camera using a pattern, http://www.rcgroups.com/forums/showthread.php?t=2516950
==== Battery ====
* http://www.tjinguytech.com/charging-how-tos/parallel-charging Chargin two batteries pack
