Include php-gettext 1.0.7 into extlibs; loading it up if native gettext extension is not present.

This provides a pure PHP implementation of the gettext functions.

This should help get laconica running on shared hosting environments where PHP's gettext module may not be installed.
Also gets us one step closer to running on Mac OS X 10.5 with Apple's preinstalled PHP, which doesn't provide an easy way to add modules.

Source: http://savannah.nongnu.org/projects/php-gettext
Copyright (c) 2005 Steven Armstrong <sa at c-area dot ch>
GPLv2 or later

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+PHP-gettext 1.0
+
+Copyright 2003, 2006 -- Danilo "angry with PHP[1]" Segan
+Licensed under GPLv2 (or any later version, see COPYING)
+
+[1] PHP is actually cyrillic, and translates roughly to 
+    "works-doesn't-work" (UTF-8: Ради-Не-Ради)
+
+
+Introduction
+
+    How many times did you look for a good translation tool, and
+    found out that gettext is best for the job? Many times.
+
+    How many times did you try to use gettext in PHP, but failed
+    miserably, because either your hosting provider didn't support
+    it, or the server didn't have adequate locale? Many times.
+
+    Well, this is a solution to your needs. It allows using gettext
+    tools for managing translations, yet it doesn't require gettext
+    library at all. It parses generated MO files directly, and thus
+    might be a bit slower than the (maybe provided) gettext library.
+
+    PHP-gettext is a simple reader for GNU gettext MO files. Those
+    are binary containers for translations, produced by GNU msgfmt.
+
+Why?
+
+    I got used to having gettext work even without gettext
+    library. It's there in my favourite language Python, so I was
+    surprised that I couldn't find it in PHP. I even Googled for it,
+    but to no avail.
+
+    So, I said, what the heck, I'm going to write it for this
+    disguisting language of PHP, because I'm often constrained to it.
+
+Features
+
+  o Support for simple translations
+    Just define a simple alias for translate() function (suggested
+    use of _() or gettext(); see provided example).
+
+  o Support for ngettext calls (plural forms, see a note under bugs)
+    You may also use plural forms. Translations in MO files need to
+    provide this, and they must also provide "plural-forms" header.
+    Please see 'info gettext' for more details.
+
+  o Support for reading straight files, or strings (!!!)
+    Since I can imagine many different backends for reading in the MO
+    file data, I used imaginary abstract class StreamReader to do all
+    the input (check streams.php). For your convenience, I've already
+    provided two classes for reading files: FileReader and
+    StringReader (CachedFileReader is a combination of the two: it 
+    loads entire file contents into a string, and then works on that). 
+    See example below for usage. You can for instance use StringReader 
+    when you read in data from a database, or you can create your own 
+    derivative of StreamReader for anything you like. 
+    
+
+Bugs
+
+    Plural-forms field in MO header (translation for empty string,
+    i.e. "") is treated according to PHP syntactic rules (it's
+    eval()ed). Since these should actually follow C syntax, there are
+    some problems.
+
+    For instance, I'm used to using this:
+      Plural-Forms: nplurals=3;    plural=n%10==1 && n%100!=11 ? 0 : \
+         n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;
+    but it fails with PHP (it sets $plural=2 instead of 0 for $n==1).
+
+    The fix is usually simple, but I'm lazy to go into the details of
+    PHP operator precedence, and maybe try to fix it. In here, I had
+    to put everything after the first ':' in parenthesis:
+      Plural-Forms: nplurals=3;    plural=n%10==1 && n%100!=11 ? 0 : \
+         (n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);
+    That works, and I'm satisfied.
+
+    Besides this one, there are probably a bunch of other bugs, since
+    I hate PHP (did I mention it already? no? strange), and don't
+    know it very well. So, feel free to fix any of those and report
+    them back to me at <danilo@kvota.net>.
+
+Usage
+
+    Put files streams.php and gettext.php somewhere you can load them
+    from, and require 'em in where you want to use them.
+
+    Then, create one 'stream reader' (a class that provides functions
+    like read(), seekto(), currentpos() and length()) which will
+    provide data for the 'gettext_reader', with eg.
+      $streamer = new FileStream('data.mo');
+
+    Then, use that as a parameter to gettext_reader constructor:
+      $wohoo = new gettext_reader($streamer);
+
+    If you want to disable pre-loading of entire message catalog in 
+    memory (if, for example, you have a multi-thousand message catalog 
+    which you'll use only occasionally), use "false" for second 
+    parameter to gettext_reader constructor:
+      $wohoo = new gettext_reader($streamer, false);
+
+    From now on, you have all the benefits of gettext data at your
+    disposal, so may run: 
+      print $wohoo->translate("This is a test");
+      print $wohoo->ngettext("%d bird", "%d birds", $birds);
+
+    You might need to pass parameter "-k" to xgettext to make it
+    extract all the strings. In above example, try with 
+      xgettext -ktranslate -kngettext:1,2 file.php
+    what should create messages.po which contains two messages for
+    translation.
+
+    I suggest creating simple aliases for these functions (see
+    example/pigs.php for how do I do it, which means it's probably a
+    bad way).
+
+
+Usage with gettext.inc (standard gettext interfaces emulation)
+
+    Check example in examples/pig_dropin.php, basically you include 
+    gettext.inc and use all the standard gettext interfaces as 
+    documented on:
+
+       http://www.php.net/gettext
+
+    The only catch is that you can check return value of setlocale()
+    to see if your locale is system supported or not.
+
+
+Example
+
+    See in examples/ subdirectory. There are a couple of files.
+    pigs.php is an example, serbian.po is a translation to Serbian
+    language, and serbian.mo is generated with
+       msgfmt -o serbian.mo serbian.po
+    There is also simple "update" script that can be used to generate
+    POT file and to update the translation using msgmerge.
+
+Interesting TODO:
+
+  o Try to parse "plural-forms" header field, and to follow C syntax
+    rules. This won't be easy.
+
+Boring TODO:
+
+  o Learn PHP and fix bugs, slowness and other stuff resulting from
+    my lack of knowledge (but *maybe*, it's not my knowledge that is
+    bad, but PHP itself ;-).  
+
+    (This is mostly done thanks to Nico Kaiser.)
+
+  o Try to use hash tables in MO files: with pre-loading, would it 
+    be useful at all?
+
+Never-asked-questions:
+
+  o Why did you mark this as version 1.0 when this is the first code
+    release?
+
+    Well, it's quite simple. I consider that the first released thing
+    should be labeled "version 1" (first, right?). Zero is there to
+    indicate that there's zero improvement and/or change compared to 
+    "version 1".
+
+    I plan to use version numbers 1.0.* for small bugfixes, and to
+    release 1.1 as "first stable release of version 1".
+
+    This may trick someone that this is actually useful software, but
+    as with any other free software, I take NO RESPONSIBILITY for
+    creating such a masterpiece that will smoke crack, trash your
+    hard disk, and make lasers in your CD device dance to the tune of
+    Mozart's 40th Symphony (there is one like that, right?).
+
+  o Can I...?
+    
+    Yes, you can. This is free software (as in freedom, free speech),
+    and you might do whatever you wish with it, provided you do not
+    limit freedom of others (GPL).
+
+    I'm considering licensing this under LGPL, but I *do* want
+    *every* PHP-gettext user to contribute and respect ideas of free
+    software, so don't count on it happening anytime soon.
+
+    I'm sorry that I'm taking away your freedom of taking others'
+    freedom away, but I believe that's neglible as compared to what
+    freedoms you could take away. ;-)
+
+    Uhm, whatever.