Some cleaning, improved logging output and async problem solved

[volschin]

The following things are done:

1. adding a .gitignore file that leaves out param.txt, logs and other admin crap
2. correcting the chmod to -x for all files except .sh
3. Renamed params.txt to params-sample.txt (params.txt is ignored to not accidentally push account data)
4. Improved logging with more variables
5. Solved the problem discussed here http://forum.developer.parrot.com/t/how-update-data-in-your-cloud/66/36 regarding a mismatch between the cloud delivered index and the order of querying sensors, resulting in higher download on the sensor and push to the wrong sensor.
6. Disabled logging for sensitive account data
7. Commented out part with write to the filesystem not needed for cloud sync.

[gandy92]

I've encountered the same problems in my installation with 8 sensors. The proposed patch works for me, please consider accepting it.