0.1.9 - 0.1.10

Windows support via MinGW-w64. Pre-built Windows binary.
File structure has been simplified: all vlib modules were moved to the vlib/ directory, makefile was moved to the root.
One single archive with pre-built binaries for all operating systems.
mut var := val was fixed (previously mut var = val was allowed as well).

0.1.8

Single file programs without fn main now work as expected.
REPL has been fixed: it now supports imports, consts, function definitions, etc.

All C code in the compiler and vlib has been replaced with V.
# syntax for embedding C code has been removed.
Exported functions now need to be marked with pub, all public vlib functions have been updated.
CI has been set up (Travis + Azure). On every commit and PR it is made sure that V can compile itself, all tests pass, and all examples compile.
More tests have been uploaded.
Cleaner bytes to string conversion: tos2(bytes) => string(bytes).
The home page has 3 more examples next to 'hello world' that show the features of the language.
Lots of bugs and issues fixed.