Add flo to config.sh and flash.sh

Signed-off-by: Vojtech Bocek <vbocek@gmail.com>
Merge pull request #286 from Tasssadar/master

Add flo to config.sh and flash.sh
Bug 926607 - add disabled category to mach bootstrap, r=jgriffin
Bug 927653: If a project to flash is specified, always flash it (not gecko+gaia).
Merge pull request #288 from jld/flash-explicitly

Bug 927653: If a project to flash is specified, always flash it (not gecko+gaia).
Merge pull request #287 from ahal/disabled_category

Bug 926607 - add disabled category to mach bootstrap, r=jgriffin