Fixing the example
Because the changes have probably only been tested for the SDC-006 document, the example didn't do what it was supposed to do. I fixed a few things:
- Make the example Makefile also run the changes
- Make the changes script work when applied to a repo without tags (like this one :) )
- Make all references in the makefiles relevant to TEXMFHOME
- Add changes.tex to the gitignore