The first parameter of the livetable velocity macro does not accept a dot anymore

In 3.3 the first parameter of a livetable macro. For example:

#livetable("platform.vms" $collist $colprops $options)
{/code}

Is not supported anymore. Removing the dot works. This worked in XE 2.7 without any problems

#livetable("platformvms" $collist $colprops $options)

There is no meaningfull error message saying that this was the problem. I think this is used for css so is probably not validating. However we should either warn or transform it.