Updating (chibi uri) to use new string-find return values, which
were changed to offsets rather than potentially #f.
Also consistently using string-cursor API rather than indexes.
Fixes issue #189.
Adding mime tests.
C-level string API redesign with cursor support.
s/sexp_string_length/sexp_string_size/
Make sexp_string_ref/sexp_string_set Unicode aware.
Provide cursor level alternatives for efficiency.
Document all of this.
sexp_string_size and sexp_string_length both return sexp_uint_t.
Adding missing types.
Making C string port API names match the Scheme side.
Updating chibi.net.http with mime changes.
Fixing typo in test-group.
Initial version of (chibi regexp).
Fixing a bug in regexp-match not properly matching to the end of the string.
Adding note about C API philosophy.
Removing uneeded imports.