Cleanup .gitignore file

Belonging to [master]:
  - #65

Author: lochel

.gitignore

@@ -1,19 +1,18 @@
 # autoconf
+.externalToolBuilders/*.launch
+.metadata/
+.project
+.settings
+/config.guess
+/config.log
+/config.status
+/config.sub
+/configure
+/install-sh
+/make.log
 /Makefile
 autom4te.cache/
 build/
-config.guess
-config.log
-config.status
-config.sub
-configure
-install-sh
-.metadata/
-.externalToolBuilders/*.launch
-.project-sample
-.project
-.openmodelica.aspell
+NewDocumentation/
 OMPython/
 OpenModelicaSetup/
-NewDocumentation/
-.settings