Adds some more OS specific file to the ignore list

Modelica.gitignore

@@ -7,6 +7,9 @@
 *.bak
 *.bak-mo
 *.mof
+\#*\#
+*.moe
+*.mol
 
 ## Build artefacts
 *.exe
@@ -35,4 +38,8 @@ request
 stat
 status
 stop
-success
+success
+*.
+
+## Files generated by OS X
+.DS_Store