3.3.9.1 release.

Added release date.

Fixed the incorrect date.

Added release number and release date.

Fixed so all . prefixed files are removed from builds.

Fixed bug where the table plugin would copy cell/row id attributes wh…

…en making new rows/cells.

Added release date.

Added missing semicolon.

Fixed leakage of local variable.

Fixed issue with mixed format splitting block containers.