The INSTALL.mingw file is now actually a script that can be passed to
bash.  It will download and compile the dependencies, and then build the
pidgin-otr NSIS installer and zip file.

Note that the GTK and pidgin libraries are downloaded in Windows binary
form (though their checksums are checked), and not built from source.

This script is known to work on one particular Ubuntu 14.04 machine.  It
would be cool if others could try it as well, and it would be super-cool
if we could turn this into a deterministic build.

It shows any warnings better, and also matches libotr.

AM_DISABLE_STATIC and AM_PROG_LIBTOOL become LT_INIT([disable-static])

Reported by intrigeri <intrigeri@boum.org>

Fixes #27Signed-off-by: Ian Goldberg <iang@cs.uwaterloo.ca>

Thanks to Stefan Sperling <otr@stsp.name> and Hanno Böck
<hanno@hboeck.de> for the report.

Fixes #88Signed-off-by: Hanno Böck <hanno@hboeck.de>
Signed-off-by: Ian Goldberg <iang@cs.uwaterloo.ca>

po/es.po: Updated Spanish translation from strel
po/de.po: Updated German translation from Andy Kleinert
          <Wawuschel@erweiterungen.de>
po/nb_NO.po: Fix language code in Norwegian Bokmål translation

Finalize the date in NEWS and README

There are small patches for libgpg-error and for libgcrypt

Thanks to Guo Yixuan <culu.gyx@gmail.com> for the report and patch.

Mostly in documentation, but also in the HELPURL in the code

Thanks to Daniel Kraft <d@domob.eu> for reporting the issue.

If the OTR plugin doesn't know about Groupwise's maximum message size,
then encrypted authentication messages will be undesirably truncated.

Libpurple declares Groupwise's maximum size as 2048.  That didn't work
for OTR, so we use 1792 - that one works.

https://bugzilla.novell.com/show_bug.cgi?id=809052