Prefix DB field by the table alias, to prevent error when a segment joins another table that has some field names in common #9822

refs #5940 moved files into a subfolder framework, added autoloader to remove duplicated code to load autoload.php and to be able to register more autoloaders (eg for test files) on demand. This I got read of many includes that had to be updated all the time and that had to be updated all the time when moving iles

refs #5940 we might stay backwards compatible this way for 2 months. moved some tests from unit to integration and explained when a test is a unit test, an integration test or a system test.

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

Refs #5800, add namespaces to integration tests in root folder. Also add IntegrationTestCase to a namespace, re-add individual test @groups, move test groups to class level, and rename test files & class names so underscores are not used.

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

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

Refs #2908, refactored tests so database setup (adding sites, tracking visits) are separated from API tests. Put setup code into fixtures and reused code as much as possible.

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

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

 * Archiving code that doesn't hook into the actual archiving
 * API code that fakes an archive processing instance and calls archiving
 * PHPUnit test

git-svn-id: http://dev.piwik.org/svn/trunk@6812 59fd770c-687e-43c8-a1e3-f5a4ff64c105