Anduin Code

Identifiers to not start with leading hyphen.
Refined 'lhs' as 'lvalue', process expression lists.

Added predecrement and preincrement; added square-brackets for indexing,
and allowed indexing to be an lvalue.

Added function and method calls.

Start constructing the AST for realsies; added 'while'; pushed identifier
namespace processing from bison to flex because each individual namespace is
not an actual AST object; added classes for various expressions.

Added parens.

Reverted assign to just "="; flipped variable declarations to "var:type name=value";
added basic math operators.

Added logic and math expressions; constant definitions; 'if'; multi-assignments.

Added assignment expressions.

I know the manual makefile is temporary, but let's at least make it look more like a real project.

(moving) (wait did subversion just really delete-add instead of
natively moving??)