Please backport hedgewars 0.9.20.5-1 (universe) from trusty

Please backport hedgewars 0.9.20.5-1 (universe) from trusty to saucy, raring, quantal and precise.

Reason for the backport:
========================
The backport makes people able again to network play with the newer release, and ports many new features on older ubuntu releases

Testing:
========
https://launchpad.net/~costamagnagianfranco/+archive/hedgewars/+packages

* saucy:
[X] Package builds without modification
[X] hedgewars installs cleanly and runs

* raring:
[X] Package builds without modification
[X] hedgewars installs cleanly and runs

* quantal:
[X] Package builds without modification
[X] hedgewars installs cleanly and runs

* precise:
[X] Package builds without modification
[X] hedgewars installs cleanly and runs

Reverse dependencies:
=====================
The following reverse-dependencies need to be tested against the new version of hedgewars. For reverse-build-dependencies (-Indep), please test that the package still builds against the new hedgewars. For reverse-dependencies, please test that the version of the package currently in the release still works with the new hedgewars installed. Reverse- Recommends, Suggests, and Enhances don't need to be tested, and are listed for completeness-sake.

hedgewars
---------
* hedgewars-data
  [x] saucy, raring, quantal, precise (Reverse-Recommends)
  [x] saucy, raring, quantal, precise (Reverse-Conflicts)
  [x] saucy, raring, quantal, precise (Reverse-Replaces)