gpio_led app added
Implemented new led status proposal
New blink patterns for safety switch, removed GPS lock indicator
Use work_queue instead of thread
Hotfix: Wrong capitalization on header file name
Merge branch 'master' into gpio_led
Merge branch 'master' into new_led_status
Tested with PX4FMU and PX4IO with GPS and arming
Fixed led patterns to be up to the latest specs
Fixed compile and logic errors, behaving now
Blink pattern fixes
Hotfix: Make the param file name less then 8 characters
Merge branch 'master' of github.com:PX4/Firmware
Merge pull request #269 from PX4/new_led_status

New led status
Hotfix: Off-by-one fix in overflow check
Hotfix: better error messages for missing modules
Merge branch 'master' of github.com:PX4/Firmware
arming: added PWM_SERVO_SET_ARM_OK and PWM_SERVO_CLEAR_ARM_OK

these new ioctls allow for the flight code to tell the IO board that
arming can proceed
Hotfix: Changed alarms back to what they originally were designed for: Traps to later see if condition was once violated. Currente status can be read through the status flags
Merge branch 'master' into gpio_led