The install target install some binaries without language extentions and
others with such extension:
* grgsm_capture.py
* grgsm_channelize.py
* grgsm_decode
* grgsm_livemon
* grgsm_scanner
It would be more consistent and according to the policy of Debian and
Ubuntu if all the binaries were without such language extention. This
commit rename grgsm_capture.py and grgsm_channelize.py to avoid the
language extention.
Vasil Velichkov