Added markdown syntax hl, added some python/reST UltiSnips snippets

UltiSnips/python.snippets

@@ -42,4 +42,8 @@ window.wm_withdraw()  # make window invisible. we only want message boxes
 ttk.Style().theme_use('clam')
 tkMessageBox.showinfo(title="${1:title}", message="${2:msg}", parent=window)
 endsnippet
+
+snippet _ "Dunder completion"
+__${1:init}__$0
+endsnippet
 # vim:ft=snippets:

UltiSnips/rst.snippets

@@ -38,7 +38,7 @@ snippet copyright
 :Copyright: ${1:}
 endsnippet
 
-snippet rights reST tag
+snippet rights "reST tag"
 :Rights: ${1:}
 endsnippet