do not completly fail if some control can not be set; just a test whether setting focus works on B910 ... it does, therefore will add parameters to set these options
TODOs ... perhaps refactor code a bit beforehand to get some functionality for mono and stereo nodes
that is about how it will look like
ignore some files
auto_focus and focus_absolute tested: working
add some more settings
still WIP, but at least tho most important params are supported
Merge pull request #11 from andreasBihlmaier/master

Use params instead of hard coded camera settings