Load ruby syntax in "after"

Bleh for whatever reason my user ruby indentation settings are being
overwritten by system defaults.  Let's put a stop to that shall we?

diff --git a/after/ftplugin/ruby.vim b/after/ftplugin/ruby.vim
new file mode 120000 (symlink)
index 0000000..1cbfbc6
--- /dev/null
+++ b/after/ftplugin/ruby.vim
@@ -0,0 +1 @@
+../../ftplugin/ruby.vim
\ No newline at end of file