* refactor
* fix: bug in previous refactor
* chore: exclude phpcompat sniff due to bug in phpcompat
* fix: do not leak absolute paths
* refactor/fix: batch extensions checking, fix DOS issue
This fixes a future problem when code is placed under a namespace because `get_class($bridge)` will then return e.g. `RssBridge\Bridge\TwitterBridge` instead of the the current value `TwitterBridge`.
Also a bit refactoring of `Configuration.php`.
The configuration files are currently hard-coded in the configuration
classes and error messages. However, the implementation should not
rely on specific details like the file name. Instead, the files should
be part of the global definition.
This commit introduces two global constants for the configuration files
- FILE_CONFIG => 'config.ini.php'
- FILE_CONFIG_DEFAULT => 'config.default.ini.php'