Added code to allow insertion of boilerplate into modules to make them able to share lots of code, the result

should be a huge reduction of total ansible source, at a slight cost of difficulty in original module development.

We need to apply this now to all modules, but may need to have some exemptions to things like command, which should
subclass this module.

hacking/test-module

@@ -31,6 +31,7 @@ import os
 import subprocess
 import traceback
 from ansible import utils
+from ansible import module_common
 
 try:
     import json
@@ -54,6 +55,23 @@ argsfile = open(argspath, 'w')
 argsfile.write(args)
 argsfile.close()
 
+module_fh = open(modfile)
+module_data = module_fh.read()
+included_boilerplate = module_data.find(module_common.REPLACER) != -1
+module_fh.close()
+
+if included_boilerplate:
+    module_data = module_data.replace(module_common.REPLACER, module_common.MODULE_COMMON)
+    modfile2_path = os.path.expanduser("~/.ansible_module_generated")
+    print "* including generated source, if any, saving to: %s" % modfile2_path
+    print "* this will offset any line numbers in tracebacks!"
+    modfile2 = open(modfile2_path, 'w')
+    modfile2.write(module_data)
+    modfile2.close()
+    modfile = modfile2_path
+else:
+    print "* module boilerplate substitution not requested in module, tracebacks will be unaltered"
+
 os.system("chmod +x %s" % modfile)
 cmd = subprocess.Popen("%s %s" % (modfile, argspath), 
     shell=True,