Red.js version 0.0.7

• Fixed to action.
• Reimplemented char! and string!.
• Added basic actions for char!.
• Fixed inconsistent mold behavior for string! and char!.
• Fixed pick and poke bugs.
• Added unset native.
• Added more utility functions.
• Fixed a context bug.
• Added union native (paritally).
• Added more supported types for make block!.
• Added to action for block!.
• Added copy action for string!.
• Fixed an issue where function refinements that didn't take any arguments would be ignored.
• Made the interactive help function better.
• Added all typesets.