Version 2.1

Changes

• Added functions: parseExpression(), valueToAst(), validateTree(), isExpression(), newNodeFast().
• Added AST node fields: AstNode.pretty, AstNode.prefix, AstNode.suffix.
• tokenize(): Added option to keep whitespace tokens (which is a new token type).
• toLua(): Added nodeCallback argument.
• toLua(): Outputting less parentheses around some binary expressions.
• toLua(): Fixed invalid output of immediately invoked function expressions and similar expressions.
• toLua(): Fixed "." not always being always being considered when inserting spaces (e.g. for x .. ...).
• TableField.key is now optional if TableField.generatedKey is true.
• Fixed _ENV getting minified in Lua 5.2+.
• Fixed parsing error for chunks ending in return statements without values.