Handle files without .scm suffix.
Fix =.
Added list-ref.
list-ref error check.
list-set!.
Merge branch 'master' of github.com:kstephens/tl

Conflicts: (RESOLVED)
	lib/tl/boot.scm
Fix (or ...) syntax.
Handle unescaping string constants.
Fix char=?, char<?.

Conflicts: (RESOLVED)
	lib/tl/boot.scm
Added tl_string_unescape.
Rename gensym to %gensym.
%string-escape.
Improve character name parsing.
Macro varargs typo.
%char->digit.
Additional core scheme functions.

Conflicts: (RESOLVED)
	lib/tl/boot.scm