arguments: the input-field *and* the binding value (not only the
binding value)
Rational: (a) transformers of non-multi input-fields can now access the
attribute field of the input-field record, (b) there is no real reason
why to treat multi and non-multi input-fields differently in respect
to their transformer arguments (keep design simple).
Updates of current surflets only necessary if they create their own
non-multi input-fields (with make-input-field). Example surlfets
calculate.scm and calculate-cb.scm updated as well as standard HTML
input-fields provided by the SUrflets.
Insert forgotten point to argument list of MAKE-SELECT, making the last
arguments optional. This was the reason for a "bug" in admin-surflet.scm.
Remove bug from MAKE-SELECT;
MAKE-SELECT used the wrong argument name in calls to
make-multiple-select or make-single-select, respectively.
* Use "Internal Error" instead of "Bad Gateway" as the surflet handler is not a
gateway.
* Thus, rename BAD-GATEWAY-ERROR-RESPONSE to BAD-SURFLET-ERROR-RESPONSE.
Move SESSION-ADJUST-TIMEOUT from SEND/SUSPEND to RESUME-URL where it belongs to.
Let SET-SESSION-DATA! raise an error, if the instance isn't alive anymore (instead of returning #t or #f).
Add small comment to RESET-SESSION-TABLE!
Remove unused variable in DELETE-CONTINUATION!
Remove superfluous FILE-NAME-NON-DIRECTORY from RESUME-URL, as RESUME-URL-IDS uses this anyway.
Small change in error message in MAKE-HTTP-RESPONSE.
The surflet-path could be given either explicitly or by options-structure.
This introduced an unexpected behavior: the explicitly given surflet-path
argument was completely ignored when options were given.
Now we accept only one argument to SURFLET-HANDLER that must be an option,
like HTTPD does it.