Francisco, Shawn,

What was your thinking behind the common-fix elements?
Please also see (shortly) my new patches for fix insertion.
I've re-written the fix insertion stuff.  So that people can "declare" their use of particular environment variables in bash (using a bash function).

Then the reworked combinefixes.py will pick up on the declaration and assign an XCCDF <sub idref/> to that variable.  <sub idref/> is how oscap supports inserting particular values inside a fix. 

For unit testing (still incomplete), the bash function "needs" should grab the right value from XCCDF and populate it accordingly.

Do we still need the fix-common elements, to insert them into the XCCDF?
I like to delete unused code.

Jeff