o Add modifiers like c_comment, update templates to use headers.

o Get rid of FIXMEs.

o TEST Add to documentation:
	file
	template
	literals ("")

o Make really good testing suite.
	- new
	- new_proj

o Clean up this fmt_ptrn/template mess.
	- make sure new/new_proj print fmt_ptrn's parse errors.
	- unify apply_template better?
	- Examine exessive realloc_n_cat, for example handle_file/_handle_fmt_str.

For next verison:
	o TEST Add concept of value files: files containing key/value pairs.
	o Recusive expansions?
