Remove dependency on simplejson; convert everything over to using the json module in the python standard library.

scripts/drmaa_external_killer.py

@@ -4,10 +4,11 @@
 Terminates a DRMAA job if given a job id and (appropriate) user id.
 """
 
-import os
-import sys
 import errno
+import json
+import os
 import pwd
+import sys
 #import drmaa
 new_path = [ os.path.join( os.getcwd(), "lib" ) ]
 new_path.extend( sys.path[1:] ) # remove scripts/ from the path
@@ -15,8 +16,6 @@ sys.path = new_path
 
 from galaxy import eggs
 import pkg_resources
-pkg_resources.require("simplejson")
-import simplejson as json
 pkg_resources.require("drmaa")
 import drmaa