Add configuration property access
Drop PHP 5.3 support
Use short array declaration
Update compiler to use short array declaration
Merge pull request #791 from romainneutron/master-5.4

[3.9] Drop PHP 5.3 support
Merge pull request #790 from romainneutron/property-access

[3.9] Add configuration property access
Add configuration form types
Move main "languages" and "servername" to top level, "task-manager" and "binaries" to main configuration