multiple camera instances enabled

Signed-off-by: jayrambhia <jayrambhia777@gmail.com>
fixed merge channels
added support for bpython & plain shell
pep8
prewitt operator added for edge detection
added docs
fixed indent error
remove pycharm files
remove unnecessary print
graynp need not be uint64
removed graynp
Fixed spellings, updated self-update URL and other URLs
Fixes issue 394
Added conversion to numpy cv2 array
Updated repository from ingenuitas to sightmachine.
README: Add installation instructions for Fedora 18
Merge pull request #444 from davidk/develop-fedora-install

README: Add installation instructions for Fedora 18. Thanks for helping us out. I am sure the Fedora community will appreciate this.
Merge pull request #441 from codetab/ingenuitas-sightmachine

Updated repository from ingenuitas to sightmachine.
Merge pull request #437 from codetab/Shell-Tutorial

Fixed spellings, updated self-update URL and other URLs
Update README.markdown