Added ALTLinux release workaround detection. Now it detects it as the Arch linux
with glib 2.17. If the RVM repos will have a specific ruby for the ALTLinux,
the detect procedure can be changed to a proper one
Merge pull request #2217 from 3aHyga/master

Added ALTLinux release workaround detection.
reformat __rvm_db, update #2214
allow forcing system type, closes #2214
Merge branch 'master' of github.com:wayneeseguin/rvm