dmd 1.068 and 2.053 release

[Joel Christensen]

Looks like enum's are tighter (eg. 'enum last = media[ $ - 1 ];' doesn't 
work now). It was working in 52. I had heard it might be relaxed, not 
tightened. I get the error, 'cannot be read at compile time'.

Also immutable imstr = "test"; printf( toStringz( imstr ) ); wasn't 
working at first, but works now for some reason.

Good to have an update though.

bye,
joelcnz