Security update for postgresql93 (important)

This update for postgresql93 fixes the following issues:

• Security and bugfix release 9.3.11:
  • Fix infinite loops and buffer-overrun problems in regular expressions
    (CVE-2016-0773, boo#966436).
  • Fix regular-expression compiler to handle loops of constraint arcs
    (CVE-2007-4772).
  • Prevent certain PL/Java parameters from being set by non-superusers
    (CVE-2016-0766, boo#966435).
  • Fix many issues in pg_dump with specific object types
  • Prevent over-eager pushdown of HAVING clauses for GROUPING SETS
  • Fix deparsing error with ON CONFLICT … WHERE clauses
  • Fix tableoid errors for postgres_fdw
  • Prevent floating-point exceptions in pgbench
  • Make \det search Foreign Table names consistently
  • Fix quoting of domain constraint names in pg_dump
  • Prevent putting expanded objects into Const nodes
  • Allow compile of PL/Java on Windows
  • Fix "unresolved symbol" errors in PL/Python execution
  • Allow Python2 and Python3 to be used in the same database
  • Add support for Python 3.5 in PL/Python
  • Fix issue with subdirectory creation during initdb
  • Make pg_ctl report status correctly on Windows
  • Suppress confusing error when using pg_receivexlog with older servers
  • Multiple documentation corrections and additions
  • Fix erroneous hash calculations in gin_extract_jsonb_path()
• For the full release notse, see:
  <a href=“http://www.postgresql.org/docs/9.3/static/release-9-3-11.html”>http://www.postgresql.org/docs/9.3/static/release-9-3-11.html</a>