update to d 2.059, use strings instead of char[], bugfixes

[martindemello]

I've gone through and fixed all the deprecated/removed standard library calls that were throwing up warnings and/or errors with d2.059 and phobos. Also, I've replaced char[] with string throughout. Sorry about the huge wodge of code, but there was really no way to do this in small increments.

Plus some bugfixes:

• The fix-utf code was generating spurious invalid utf8 events, and segfaulting, due to iterating over the html file with a char rather than a dchar
• the "guint : 32; //comment" parser was not stripping off the ; onwards before converting to int

[MikeWey]

There are a few int/size_t errors on 64 bits.

[martindemello]

okay, i'll get a 64 bit vm set up and take a look

[martindemello]

compiles cleanly on both 32 and 64 bit now, and the generated output looks fine.

[MikeWey]

Why did you close the pull request?

There is one problem with the output in that some functions have changed there return type from string to char, i'll add an comment on the offending line in the commit.

Could you rebase the pull request so that the fixes are part of the initial commit?

[martindemello]

okay, i think i misunderstood what "close pull request" did. i was trying to stop new pushes to master from being appended to this request.