Improve the ''Index by Title'' page.
Now, the !TitleIndex macro supports an additional ''group'' format, e.g. {{{ [[TitleIndex(format=group)]] }}} which structures the output according to the common prefixes found in the Wiki page names.
Closes #1461.
Authored by: cboos 2006-11-11
Parent: [r4231]
Child: [r4233]