Implemented implicit keep to execute when not canceled or when the preceeding action execution fails.

Properly implemented the code dumper. Dumps are now printed in a stream. The individual opcode and operand implementations no longer use printf()s.

Almost finished implementing the store action. But, I still get strange errors when the mail transaction commits. Mail is stored though.

Created skeletons for regex and relational extensions. These are to be developed simultaneously with the match-type support in general.