Create README.md
Merge branch 'master' of https://github.com/DmitryOlshansky/DMDScript into test
Fix to compile and run on DMD v.2.061.1

Also turns out DMDScript was agressively non-64 bit.
I've fixed a number of tivial intergal size issues but stopped
at IR generator converting pointer to uint. It may happen that size_t will just work,
will look into it later.