added chirp python deps in chirp.pip
updated gqrx dependencies and added gqrx slackbuild
altered sbhelper.sh to use  variable from .info as the branch and  as the repo url
added gqrx git repo to .gitignore
added opencascade tarball to .gitignore
added fftw3 and chirp git repos to .gitignore
addded fftw3 slackbuild using git
added haskell-platform and added it's tarball to .gitignore