idp.home as system property ?

[Rod Widdowson]

> We discussed a little on the call, but I tend to favor "must set a
> property to run" over "hardwire path into files at install time". Am open
> to input on that though.

Very much +1, of course something will need to be hardwired, but in Windows
it will be the registry parameters for the service (a well understood
concept) and I guess Unixen will have some sort of equivalent..
 
> >If so, it probably should become IDP_HOME.
> 
> Probably, I wasn't sure whether we should violate Java property convention
> or not.

Me neither.  I'll register a minor concern with IDP_HOME, in that it might
cause confusion with previous installations where IDP_HOME had to be set as
an environment variable, but I'm not sure that this is not a pretty bogus
concern.

R