Add the 
khttp_urlpart(3) family
				to replace the now-deprecated 
kutil_urlpart functions.
				These are for the most part a re-name of the old functions that
				remove the unused 
struct kreq argument.
				There are some small behaviour changes from the original in corner
				case usage: they have an empty suffix (not just 
NULL)
				inhibit printing the dot-suffix, allow a 
NULL page, and
				have an empty or 
NULL page also inhibit the suffix.
				This way, these functions only produce valid URLs, and also allow
				for some previously-disallowed (but valid) forms such as
				
/?foo=bar.
			
				The previous functions have been retained with the original
				behaviour with one exception: before, an empty
				suffix would still print the period separator.  Now, this is
				suppressed.
			
			
				The khttp_vurlpart and khttp_vurlpartx
				forms, which accept a variable-length type, are also now exposed for
				use.
			
			
				Add the 
khttp_urlabs(3) function,
				which is similar to the earlier 
kutil_urlabs but
				significantly more robust and accepts query string arguments.
				The earlier 
kutil_urlabs is retained, but deprecated.
			
				Add 
khttp_urlencode(3) and
				
khttp_urldecode(3),
				replacing the legacy 
kutil_urlencode and
				
kutil_urldecode.  They're identical
				except in how 
NULL values are handled, in the first
				case returning them as empty strings instead of 
NULL,
				in the second regarding them as errors.
				For the encoder, this allows all URL formatting tools to pass
				
NULL values as query string values without errors.
				The earlier functions have been retained with the original behaviour
				
with one exception, in that a 
NULL
				destination argument for 
kutil_urldecode triggers a
				
KCGI_FORM return.
			
				Verify and fix that all scope-opening functions in
				
kcgixml(3) and
				
kcgihtml(3)
				properly close variable arguments contexts on error.
			
				Behaviour change: previously, several
				
kcgixml(3) functions would return 
				
KCGI_FORM, such as when popping from an empty stack.
				To prevent other 
KCGI_FORM errors from being masked,
				use 
KCGI_WRITER to handle these situations.
			
 
			
				Split apart 
kcgixml(3) into one manpage
				per function.