- update to Firefox 31.1.0esr (bnc#894370)
* MFSA 2014-67/CVE-2014-1553/CVE-2014-1562
Miscellaneous memory safety hazards
* MFSA 2014-68/CVE-2014-1563 (bmo#1018524)
Use-after-free during DOM interactions with SVG
* MFSA 2014-69/CVE-2014-1564 (bmo#1045977)
Uninitialized memory use during GIF rendering
* MFSA 2014-70/CVE-2014-1565 (bmo#1047831)
Out-of-bounds read in Web Audio audio timeline
* MFSA 2014-72/CVE-2014-1567 (bmo#1037641)
Use-after-free setting text directionality
- changes to support compilation on 11.4
* explicit xz BuildRequires
* mozilla-nullptr-gcc45.patch
* remove unresolved makeinfo BuildRequires

- adapted _constraints, used more than 3900MB on s390x during
last build