0.0.1

First public snapshot of Aera. Not stable, so expect breaking changes.

Working:

• fn/const/let declarations
• if/else, while, loop expressions
• call expressions, grouping, arithmetic/logical/bitwise ops
• REPL

Not yet implemented:

• Parser error recovery (one bad token currently halts parsing)
• Type checking / static semantics
• Tuples, arrays
• print/output (blocked on modules)