remove hardcode db table prefix
cleans up TODO, uses lang strings, adds breadcrumb
udpates to match consolidated lib fn
removes inline strings in favor of lang string lookups
rearrange, remove get_string, rename lengthy identifiers
the rest of a large git stage reflecting changes in lang strings, slight modifications to fn calls; all giving the appearance of a massive cruft-removal effort, esp in lib
install is necessary to ensure the custom field exists at install time; uninstall script  to clean up after; upgrade to help merge new changes into existing installations
minor spelling and wording changes; major change from array_merge back to array +=
adds optimization todo
tightens up set difference tests
tightens up set difference tests
Merge branch 'master' into de-cruft
adds upgrade steps
bumps version
Merge pull request #5 from lsuits/de-cruft

De cruft done