Several combined cleanup patches from Scott McKellar:

Several combined cleanup patches from Scott McKellar:

 * remove leading underscores from static vars and functions
 * make static functions, well, static
 * tighten up the definition of funcs that take 0 params

http://list.georgialibraries.org/pipermail/open-ils-dev/2007-May/001095.html
http://list.georgialibraries.org/pipermail/open-ils-dev/2007-May/001101.html
http://list.georgialibraries.org/pipermail/open-ils-dev/2007-May/001112.html

git-svn-id: svn://svn.open-ils.org/OpenSRF/trunk@918 9efc2488-bf62-4759-914b-345cdb29e865