Add German translation

Glances is in Gentoo's portage! http://packages.gentoo.org/package/sys-process/glances
Update Homebrew link.
Remove obsolete install instructions for OS X/Homebrew.

Fix manpage-has-errors-from-man lintian warning

Thanks Tanguy Ortolo

Remove Create badge

Change the Brew install process

Remove the Crate badge in the documentation

Add missing files to MANIFEST.in
Better package structure
Better path handling