Merge pull request #1990 from skaes/master

railsexpress patches for latest 1.9.3 release (p448)
remove references to openSUSE from common *suse code, update #1991
Merge branch 'master' of github.com:wayneeseguin/rvm
abstract installing packages from source, update #1991
making any ruby*-head check for compatible ruby available, fix #1995
fix ./installer --ignore-dotfiles and displaing help, update #1995
fix installing yaml from sourcec, update #1991
clean not needed suse installation packages, update #1991
remove not needed libxml2 and libxslt requirements, fix #1986