be less generous with CORS response headers; Opera is more strict (e.g., throw exception if Access-Control-Allow-Origin: * received on a same origin request)

refs #3430 added a first version of a script for automatic translation updates. This script fetches a download package from OTrance, extracts it and uses the tests to clean up the files. If all tests passes a pull request is created for the translation updates using the github api and the branch translationupdates.

Fixing Travis builds under PHP 5.4 due to change of htmlspecialchars + Re-enabling Transitions tests which was not executed

[ci skip]

Behaviour of pack/unpack changed in PHP 5.5 and caused Archive_Tar to break.

See: http://php.net/manual/en/migration55.changed-functions.php
and http://pear.php.net/bugs/bug.php?id=19746

[ci skip]

refs #1652

the test for core/IP.php fail. (getHostByAddress always returns the
first alias from /etc/hosts).

Reformatted code a bit.

refs #3252