Merge pull request #3 from rmsalinas/master

Merged to use cmake, add a readme, and added a RaspiCam class to wrap the CameraBoard.
Fixed issue #4
Provided the option for the raw RGB data to be returned
Added a missing function to get the encoding value
Fixed an error in raspicam.cpp that I didn't fix earlier.
Added blocking image capture function.
Revert "Fixed an error in raspicam.cpp that I didn't fix earlier."

This reverts commit 81f64d44c22e988b3bed264fc9546a041279c47b.