Currently uscan fails on this as it tries to look for a download link in the
wrong location. Switching it to a GitHub tarball will probably fix it.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

fix Makefile chmod (644)
replace MD5SUM with HASH
add PKG_MIRROR_HASH when PKG_SOURCE_PROTO:=git

(PKG_SOURCE_PROTO:=svn tarballs are not reproducible for now)

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

ntripcaster developer agency (http://igs.bkg.bund.de/) no longer provides sources for download.

Created a github repository to provide sources and allow contributions.

Fixed install location for configuration files.

Signed-off-by: Nuno Goncalves <nunojpg@gmail.com>

Signed-off-by: Nuno Goncalves <nunojpg@gmail.com>