I simply pre-allocated the new dict to the right size. This skips
internal copying logic which was repeated on every expansion. This
Should increase scope copying as well.
I applied the same logic to arrays, but the increase in speed was tiny.
Basically, all Toy varaibles, functions, etc. are prepended with "Toy_",
and macros are prepended with "TOY_". This is to reduce namespace
pollution, which was an issue pointed out to be - blame @GyroVorbis.
I've also bumped the minor version number - theoretically I should bump
the major number, but I'm not quite ready for 1.0 yet.
