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
Better preflight check, catches wrong RC configs. Needs rework of mavlink text message API to VARARGs
VA args now supported by MAVLink text messages
Fixed va args in MAVLink, tested with RC config, correct output
Fixed missing count
Removed unnecessary cplusplus check
Merge pull request #277 from PX4/preflight_check

Preflight check improvements