Fixed #018502: Class 'eZSiBlockFunction' should be named 'eZSIBlockFunction'
Changed: welcome 2013
Fix EZP-22128: Change license & copyright info to be in root of project
Fix EZP-22128: Update Copyright info in extension.xml
Fix EZP-22128: Remove ezinfo.php, extension.xml replaced it some years ago
Create composer.json
Fix EZP-22128: Update copyright info on old headers
Fixed license header and version
Fix EZP-23511: EZ Si Vhost issues on Apache 2.4

> https://jira.ez.no/browse/EZP-23511
Merge remote-tracking branch 'ezsi/master'