DWT partially updated to dmd 0.177

[torhu]

Since http://www.dsource.org/projects/dwt doesn't seem to work at the 
moment, I'm posting this here.

http://torhus.googlepages.com/dwt-dmd0177.zip

I just added -d to the batch files, and removed an illegal and seemingly 
pointless opAssign().  That makes dwt compile with 0.177.  The examples 
won't compile, however.  No idea why yet, just got a weird linker error.

The main problem probably was that the implicit conversion from a[] to 
a* is used a lot in the code.  Which -d takes care of.

One annoyance is that if you compile an app that is linked with dwt with 
-inline, you have to add -d too, otherwise the compiler still complains 
about a[] -> a* in dwt.  I've fixed this in a few of the dwt files, but 
the implicit conversion is just used too much.  So for most projects, 
you need -d if you want inlining.  For now, anyway.

By the way, is anyone else than me still using dwt?  Sort of wish I had 
chosen wxD instead.