firefox security update

firefox :
[3.0.5-1.0.1]

• Added firefox-oracle-default-prefs.js/firefox-oracle-default-bookmarks.html
• Removed the corresponding files of Red Hat.
• Added patch oracle-firefox-branding.patch
• Update firstrun URL in spec file
  [3.0.5-1]
• Update to Firefox 3.0.5
  nspr:
  [4.7.3-2]
• Update to NSPR 4.7.3
  nss:
  [3.12.2.0-2]
• Update to NSS_3_12_2_RC1
• Use system zlib
  xulrunner:
  [1.9.0.5-1.0.1]
• Added xulrunner-oracle-default-prefs.js