Update libqt4 RPMs to 4.7.4-19.17.1 for CVE-2012-6093.

Bump PKGREVISION.
Updated emulators/suse121_qt4 to 12.1nb2
Use .tar.bz2 distfile so that no extra dependency on archivers/xz is
needed when building lang/gcc* with option gcc-inplace-math.
Update opera to 12.13.

Opera 12.13 is a recommended upgrade offering security and stability
enhancements.

Fixes and Stability Enhancements since Opera 12.12
General and User Interface
  * Fixed an issue where Opera gets internal communication errors on Facebook
  * Fixed an issue where no webpages load on startup, if Opera is disconnected
    from the Internet
  * Fixed an issue where images will not load after back navigation, when a site
    uses the HTML5 history API (deviantart.com)
    Linux and Windows
      * A new stand-alone update-checker, as part of a planned upgrade of the
	auto-update system
    Windows
      * Improved protection against hijacking of the default search, including
	a one-time reset
Security
  * Fixed an issue where DOM events manipulation might be used to execute
    arbitrary code, as reported by Arthur Gerkis; see our advisory:
      http://www.opera.com/support/kb/view/1042/
  * Fixed an issue where use of SVG clipPaths could allow execution of arbitrary
    code, as reported by anonymous via the iSIGHT Partners GVP Program; see our
    advisory:
      http://www.opera.com/support/kb/view/1043/
  * Fixed a low severity security issue; details will be disclosed at a later
    date
  * Fixed an issue where CORS requests could omit the preflight request, as
    reported by webpentest; see our advisory:
      http://www.opera.com/support/kb/view/1045/
Updated www/opera to 12.13
Set LIBABISUFFIX on SunOS x86_64. Should probably also be done for
sparcv9, but I can't test that.
Use LIBABISUFFIX when creating the .pc files to make builtin openssl
work on 64bit SunOS and possibly others.
Prefer openssl from pkgsrc on SunOS by default.
Treat /usr/lib${LIBABISUFFIX} like /usr/lib to avoid picking up the
wrong libraries from that dir.
Fix the first master site.
Fix HOMEPAGE.
Update libssh to (upstream) 0.5.4 == (our) 0.54.

(We need to keep the old numbering syntax to make versions compare
correctly.)

There are only two consumers in pkgsrc; one of them (remmina and
remmina-plugins) actually needed library version 0.4 or later, and
didn't build the ssh/sftp/nx plugins without. Hydra is also supposed
to build with 0.4.x and later.)

Upstream changelogs:

0.5.4:
	CVE-2013-0176 - NULL dereference leads to denial of service
	Fixed several NULL pointer dereferences in SSHv1.
	Fixed a free crash bug in options parsing.

and for completeness 0.5.3:

	This is an important SECURITY and maintenance release in
	order to address CVE-2012-4559, CVE-2012-4560, CVE-2012-4561
	and CVE-2012-4562.

	CVE-2012-4559 - Fix multiple double free() flaws
	CVE-2012-4560 - Fix multiple buffer overflow flaws
	CVE-2012-4561 - Fix multiple invalid free() flaws
	CVE-2012-4562 - Fix multiple improper overflow checks

	(...)
Depend on newer libssh. As these packages need libssh >= 0.4 anyway (per
own build docs), this actually makes remmina offer ssh and sftp, and makes
the NX plugin build. Thus bumping revision.

XXX TODO:
XXX - RDP still isn't offered in the menu.
XXX - upstream package is 1.0

Thanks to Noud Brouwer for the original libssh-0.5.4 package from
pkgsrc-wip, which was used as security/libssh with some corrections.