Updated the synchronisation tool
we now get the id to the airframe using the pong message
updated the coding style
Merge pull request #776 from karlito139/updateVideoSyncTool

I updated the tool for displaying a video in sync with the log file. Now you can create a "clap" (the screen blinks for 1s) in order to easily get a time flag in the video and in the log file (added a message for that).
Merge branch 'master' of https://github.com/paparazzi/paparazzi into delflyDesperado