Bug fixes, political time, and minimal DOY values

Fix rfc-1123 format documentation

Change +rfc-1123-format+ to use numeric timezone indicators

RFC-1123 section 5.2.14 writes

"There is a strong trend towards the use of numeric timezone
indicators, and implementations SHOULD use numeric timezones
instead of timezone names."

RFC-822 section 5.1 writes the syntax of timezone

zone        =  "UT"  / "GMT"                ; Universal Time
                                            ; North American : UT
            /  "EST" / "EDT"                ;  Eastern:  - 5/ - 4
            /  "CST" / "CDT"                ;  Central:  - 6/ - 5
            /  "MST" / "MDT"                ;  Mountain: - 7/ - 6
            /  "PST" / "PDT"                ;  Pacific:  - 8/ - 7
            /  1ALPHA                       ; Military: Z = UT;
                                            ;  A:-1; (J not used)
                                            ;  M:-12; N:+1; Y:+12
            / ( ("+" / "-") 4DIGIT )        ; Local differential
                                            ;  hours+min. (HHMM)

Which I feel using the numeric is the way to go. It's always valid
that we don't have to worry about if the timezone abbreviation is in
the allowed list.

Patch to support Allegro Common Lisp

Fix a compilation warning on LispWorks

When a function is declared as `inline` on LispWorks, the definition must appear before it is used otherwise a warning is issued.

Allow the :HOUR12 format in format-timestring to take a padding and length argument.

Hello,

I have produced a patch which allows LOCAL-TIME to support subsecond
resolution of time in Allegro Common Lisp. I produced it with git
format-patch and attached it to this email.  Hopefully, it'll be good
enough without further changes. Let me know if you need anything else.

Thank you.

Peter Keller

>From ae6325f7aadaf771f6ed86ad7c4893818351031e Mon Sep 17 00:00:00 2001
From: Peter Keller <psilord@cs.wisc.edu>
Date: Fri, 31 Jan 2014 15:57:26 -0600
Subject: [PATCH] Add support for subsecond resolution under Allegro.

Refactor TRANSITION-POSITION to use iteration

Split +iso-8601-format+ into +iso-8601-date-format+ and +iso-8601-time-format+ so that they can be used individually.

Split +iso-8601-format+ into +iso-8601-date-format+ and +iso-8601-time-format+ so that they can be used individually.