the auth info was not working.

1. TD < 2 in a row
2. TD <= 50% of total cells
3. Not all table rows can be THEAD rows

1. cachetime setting should only be applied to the cache_renderer
   class.  Previously it was applied to cache_parser (and by
   extension cache_handler).
2. two special cachetime values, -1 & 0, weren't handled, per
   FS#2183

To handle the cachetime setting, -1, disable caching, a new
property _nocache is added.  When that property is true, any cache
file must not be used and storecache() should not store any values

source maps are invalid for our dispatched sources and may even cause
problems. this makes sure any sourcemap declarations are stripped from
the output

This adds a warning in the case that the default action is not null but
also not callable which can happen when the supplied method is not
public.