Moved submodules to new gitlab server

.gitmodules

 [submodule "external/pybison"]
 	path = external/pybison
-	url = git@kompiler.org:python/pybison
+	url = ssh://git@git.kompiler.org:10022/taddeus/pybison.git
 [submodule "external/graph_drawing"]
 	path = external/graph_drawing
-	url = git@kompiler.org:python/graph_drawing
+	url = ssh://git@git.kompiler.org:10022/taddeus/graph_drawing.git
 [submodule "external/mathjax"]
 	path = external/mathjax
 	url = http://github.com/mathjax/MathJax
 [submodule "external/testrunner"]
 	path = external/testrunner
-	url = git@kompiler.org:python/testrunner
+	url = ssh://git@git.kompiler.org:10022/taddeus/pytestrunner.git