Geoserver now has a default function factory that should suffice.
Filter working now. Started with geoserver example then added back
the sha1 code.
Removed dead code.
Filter function working now. Started with geoserver example, then
added back sha1 code.
Removed more dead code.
Removed dead code.
All unit tests in sync-server plugins are working now.
Reverted many unit test checks back to their original now that
filter function is working.
Added missing @After to do post test cleanup.