Updated submodules (.gitmodules) and SHA1s

.gitmodules

 [submodule "gpAux/client"]
 	path = gpAux/client
-	url = ssh://git@stash.eng.pivotal.io:2222/gpdb/clients.git
+	url = git@github.com:greenplum-db/gpclients.git
 	branch = master
 [submodule "gpAux/extensions/plr/source"]
 	path = gpAux/extensions/plr/source
-	url = ssh://git@stash.eng.pivotal.io:2222/gpdb/plr.git
+	url = git@github.com:greenplum-db/plr.git
 	branch = master
 [submodule "gpAux/extensions/tpch/source"]
 	path = gpAux/extensions/tpch/source
-	url = ssh://git@stash.eng.pivotal.io:2222/gpdb/tpch.git
+	url = git@github.com:greenplum-db/tpch.git
 	branch = master
 [submodule "gpAux/extensions/pgbouncer/source"]
 	path = gpAux/extensions/pgbouncer/source
-	url = ssh://git@stash.eng.pivotal.io:2222/gpdb/pgbouncer.git
+	url = git@github.com:greenplum-db/pgbouncer.git
 	branch = master
 [submodule "gpAux/extensions/postgis-2.0.3/source"]
 	path = gpAux/extensions/postgis-2.0.3/source
-	url = ssh://git@stash.eng.pivotal.io:2222/gpdb/postgis.git
+	url = git@github.com:greenplum-db/postgis.git
 	branch = master
 [submodule "gpAux/addon"]
 	path = gpAux/addon
-	url = ssh://git@stash.eng.pivotal.io:2222/gpdb/addon.git
+	url = git@github.com:greenplum-db/gpaddon.git
 	branch = master
 [submodule "gpAux/extensions/gp_filedump"]
 	path = gpAux/extensions/gp_filedump
-	url = ssh://git@stash.eng.pivotal.io:2222/gpdb/gp_filedump.git
+	url = git@github.com:greenplum-db/gp_filedump.git
 	branch = master
 [submodule "gpMgmt/bin/pythonSrc/ext"]
 	path = gpMgmt/bin/pythonSrc/ext
-	url = ssh://git@stash.eng.pivotal.io:2222/gpdb/pythonsrc-ext.git
+	url = git@github.com:greenplum-db/pythonsrc-ext.git
 	branch = master
 [submodule "src/bin/gpfdist/ext"]
 	path = src/bin/gpfdist/ext
-	url = ssh://git@stash.eng.pivotal.io:2222/gpdb/gpfdist-ext.git
+	url = git@github.com:greenplum-db/gpfdist-ext.git
 	branch = master

source @ 60afcd79

-Subproject commit 96c8ea1162f96a955ff4d5272ce5bb5fb2ffc44e
+Subproject commit 60afcd79eeb38d8279103248ddd166de66caa704

source @ 97161698

-Subproject commit b170ab62e9a193dea1b1bbf9b4afe1e00143f110
+Subproject commit 971616981525d0a188fb1578a98a6a8c189688b7

source @ 15f12a50

-Subproject commit b531e636c3bea9f63ec2c6c9301d09d9a69863a4
+Subproject commit 15f12a50747f692eb8b741c99c1195bdeffbbddb

source @ 7062520a

-Subproject commit 29809e6a44f1a062453a5019bf40228049a52553
+Subproject commit 7062520ac8553089d575940ef93346cc559ad9ab

ext @ f09729ca

-Subproject commit ec478ad7cc66a80941831e6c664dcfa77b53c267
+Subproject commit f09729ca3f52f9d8c8da4d3ffad6f0fad1f62663

ext @ 96f7f1b0

-Subproject commit 22429d9b2a9f60886d34423a676c7400983903e2
+Subproject commit 96f7f1b0b776edb4192d11a7ba0a576007f64dd7