Implementing PluginManager and Plugin to replace deprecated plugin stuff,
Modification throught plugins and service to use plugin according to the new system
Minor fixes on plugin system project organization
Adding commentaries and minor improvement on Plugin class by adding group property
Merge pull request #1 from neihr/Plugin-System

Plugin system
Adding MetaBridge lib with MetaBridge implementation + minor fixes PluginSystem
Refactoring MetaBridge to MetaConfig,
Impoving MetaConfig set and get by adding a check on values types
Droping Meta Abilities
Implement MetaConfigDriver and MetaPlugin
Refactoring current plugins to support MetaPlugin and scale with meta config
Minor Fixes on Plugin Manager
Merge pull request #2 from neihr/MetaSystem

Meta system
Completely remaking vsftpd plugin + Adding anonymous and regular user property
Improving proftpd plugin + Adding anonymous and parser metaproperty
Minor fixes
stash-save
Fix bug #1361
Bug #1363
fixed typo
fixed typo (forgotten files)
Fixed "join" behaviour in Query
getCredentialsForRole
Fill session with user's credentials upon login
Database tools
Bugfix #1784
Modified routing xml/xsd and applied access restrictions to routes
Deleted getRequiredCredentials from processors since permission controls are now performed on route level