[mythtv] Database schema checker

[Otto Kolsi]

Otto Kolsi wrote:
> Here is quick and dirty patch that reveals those entries in DB that do 
> not have corresponding file:

Another issue I noticed is that MythWeb is not able to delete recordings 
which do not have corresponding file. MythFrontend pops an extra 
confirmation and is able to remove this kind of recording.

Not sure if this is a defect in MythWeb or belong to category 'feature 
request without a patch'.
-- 
   Otto