[FEATURE] Added utility for vendor extension registration
[TASK] Automatically add Wizards created through Field instances
Merge pull request #379 from NamelessCoder/wizardadd

[TASK] Automatically add Wizards created through Field instances
Merge pull request #369 from hmspl/vendor

[FEATURE] Added utility for vendor extension registration
[TASK] Minor CGL changes to Core class
[TASK] Add a few missing API methods expected to exist by convention
[TASK] Avoid expensive try/catch, replace with isset() check
[TASK] Remove registration (not configuration) of Flux API plugin

This allows the plugin to be used in manual bootstrapping, but not inserted as plugin on pages.
[TASK] Adapt a few tests to recent changes
[TASK] Some leftovers from namespace change
[TASK] Update copyright and author tags

Assumes "Claus Due" as author whenever no author is specified.
[BUGFIX] Avoid reflection when creating setter method name