Updated Readme with Subversion and removed andLinux suggestion.

Fetching all dependencies requires svn (for popen-noshell, for example). Also, removed andLinux, since it's not maintained, installs old toolchains from repositories and doesn't work on 64-bit Windows machines. Instead, added a link about installing Ubuntu in VM, which also mentions how to set up VMWare Tools for drag-n-drop, better video performance etc.