Started implementing high-level regex API.

Added T-Rex library.

Enabled auto-completion after typing the first word.

Fixed sorting in completions.

Implemented line editing in the REPL via linenoise.

Now compiling with linenoise support.

Implemented basic time functins.

Fixed line/column reporting.

Implemented common file operations.

Implemented more combinators & math operators.

Added file/directory operations.

Implemented while, linrec, etc.

Implemented basic I/O commands, started implementing OS commands.

Implemented map.

Implemented comparison operators.

Added Bool type.

Debugging/REPL improvements.

Implemented debug mode.

Implemented first and rest.

Implemented REPL, arithmetic.

Refactoring: parser, interpreter; improved diagnostics.

Minor fixes.

Added implementation for symbol binding (def, bind, :).

Implemented interpreter and some very basic primitives.

Initial commit