Extract the first IP from HTTP_X_FORWARDED_FOR  and HTTP_CLIENT_IP and HTTP_CF_CONNECTING_IP and HTTP_X_FORWARDED_HOST when there is more than one IP (#10404)

* Extract the first IP from HTTP_X_FORWARDED_FOR when there is more than one
Fixes #10342

* Fetch the first IP from a list of IPs

* Return the first non empty IP

Remove uses of Config::init(), Config::clear() and Config::setTestEnvironment(). Replace last w/ mock config class, which is closer to use of DI.

This should fix the unit tests.

refs #5940 put tests in correct folders, better testsuite names, some tests still fail and I cannot figure out why

Piwik is a free/libre analytics platform. Refs #4455 GNU Package requirement to use free/libre instead of open source

Fixes issue when a port number is appended to the hostname, expected: pick the hostname'd config file (without port number)

 * updating all variables/methods containing Referers
 * RENAMING custom segments definition, and custom scheduled reports definition, so that when they load "Referers" segment/report it still works as expected
 * RENAMING old archived data so that archived blobs are called Referrers
  * Reverting part of 0deb2bbb
  * Update integration tests generating PDF+HTML with images on my dev box (GD 2.1 and PHP 5.5)

Remove compat code for PHP < 5.3. inet_pton/inet_ntop are available in Windows in PHP >= 5.3 so we don't need the compat code anymore.

refs #3741, #4113

Removed many Piwik_ functions, in Piwik 2 it is best practise to use the methods calls instead

Todo: finish converting core/ classes + convert plugins/ classes to use \Piwik\Plugin namespace + fix build + Merge master

Converting Access & Auth to namespace

Notice that auto refactoring has created a nested namespace. Not sure this is what we want - so we might have to edit those nested namespaces afterwards (I think they don't look so good)

Notice that auto refactoring has created a nested namespace. Not sure this is what we want - so we might have to edit those nested namespaces afterwards (I think they don't look so good)

2 steps required:

1. Refactor > Move > \Piwik\Core\Config (uncheck "Create new File")
2. Refactor > Rename > Piwik_Config to Config

Converting Piwik core source files, PHP, JS, TPL, CSS

More info: http://piwik.org/participate/coding-standards/

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

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

depends on /etc/hosts. On most systems ::1 will resolve
to ipv6-localhost, but for Travis it resolves to localhost.

refs #2622

git-svn-id: http://dev.piwik.org/svn/trunk@6495 59fd770c-687e-43c8-a1e3-f5a4ff64c105