5.5.10 release date for NEWS
Fix NEWS for 5.5.11 fix (really not in 5.5.10)
Add CVE ref (not known at release time)
Fix order in NEWS
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Fix order in NEWS
  Add CVE ref (not known at release time)
  Fix NEWS for 5.5.11 fix (really not in 5.5.10)
  5.5.10 release date for NEWS