Adds python2 to general packages to be installed

devstack works only for python2 python3 will break the install.
This commit adds python2 to the general dependencies of ubuntu

Change-Id: I7721ff85a63f635ff798407a5ee1d6766405c683
Closes-Bug: #1188215
diff --git a/files/apts/general b/files/apts/general
index fcf0b5b..aff687f 100644
--- a/files/apts/general
+++ b/files/apts/general
@@ -20,3 +20,4 @@
 euca2ools # only for testing client
 tar
 python-cmd2 # dist:precise
+python2.7