MAJOR UPDATE

So I finally figured out the linked list thing.
Command stream just holds the head pointer, tail pointer, and a pointer
to search through (temp if you will). Also has a count for the number of
nodes.

Nodes were made to be doubly linked.

Also minor fixes made like:
- If line ends w/special token then make next line part of the same
line.
- Error produced if two semi colons in a row.

UNRESOLVED ERRORS/QUESTIONS:
- Have to establish a way to check if there is a non whitespace in front
of # (comment), if so its not a comment.
- Need to come up with method to build trees. Command_t structure looks
handy
- Need to actually put in compiler to find a billion errors