using python-apt for installs
remove the pip dependency, we're using apt-get
bugfix in reporting installation errors
install dependencies when needed
Merge branch 'apt-installs' of https://github.com/3DaGoGo/AstroBox into apt-installs

Conflicts:
	src/astroprint/software.py
Merge pull request #35 from 3DaGoGo/apt-installs

Apt installs