Added a CONTRIBUTING.rst
Fixes signal level returning as zero
Merge branch 'master' of git://github.com/spektom/wifi into spektom-master
Merge branch 'spektom-master'
Fixes missing channel for #24

Thanks to LiorKirsch for finding and figuring out how to fix the bug.
Merge branch 'zero_signal_level'
Merge branch 'missing_channel'