[ENH] Adding supporting tools to help develop calculations for tracker items

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49241 b456876b-0849-0410-b77d-98878d47e9d5
[ENH] Extra validation

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49242 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] Spelling

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49243 b456876b-0849-0410-b77d-98878d47e9d5