changes IsError re-added to Vba function removed IsErrorFunDef
Merge branch 'evergreen' of https://github.com/wgorman/mondrian into evergreen
[MONDRIAN-1981] Changed documentation, for CustomData
Merge branch 'evergreen' of https://github.com/wgorman/mondrian into evergreen
Merge pull request #22 from portisheadaff/evergreen

Evergreen