Add epu and eeagent as extern

.gitmodules

@@ -11,3 +11,9 @@
 [submodule "extern/pyon"]
 	path = extern/pyon
 	url = https://github.com/ooici/pyon.git
+[submodule "extern/epu"]
+	path = extern/epu
+	url = https://github.com/ooici/epu.git
+[submodule "extern/eeagent"]
+	path = extern/eeagent
+	url = https://github.com/ooici/eeagent.git

buildout.cfg

@@ -4,6 +4,8 @@ develop =
     extern/marine-integrations
     extern/coverage-model
     extern/pyon
+    extern/epu
+    extern/eeagent
 parts =
     project-directories
     numpy-install
@@ -88,8 +90,6 @@ eggs =
     dashi
 find-links =
     https://github.com/nimbusproject/pidantic/tarball/master#egg=pidantic-0.2
-    https://github.com/nimbusproject/eeagent/tarball/master#egg=eeagent-0.2
-    https://github.com/ooici/epu/tarball/master#egg=epu-1.3
 
 [ape]
 recipe = zc.recipe.egg