Update README.txt

bibutils project has moved to: http://sourceforge.net/p/bibutils/home/Bibutils/
Update bibutils.info

bibutils project has moved to: http://sourceforge.net/p/bibutils/home/Bibutils/
Add alter to allow modules to adjust citation info to be output.
Merge pull request #116 from sprklinginfo/7.x-update-bibutils-links

7.x update bibutils links
Merge remote-tracking branch 'origin/7.x' into 7.x-COH-37
Add example implementation.
Merge pull request #118 from adam-vessey/7.x-COH-37

Add alter to allow modules to adjust citation info to be output.