user related functionality moved to UsersPackage
BasePresenter returned from SkeletonCore; base classes have namespace Clevis\Skeleton
Composer: requires UsersPackage
Composer: package requirements (TEMP)

- should be required by the package itself, as soon as we have packages registered on a public repository
Composer: remove wrong dependency
Configurator: do not load `vendor/clevispace`
fix BasePresenter namespace in presenters
declare BasePresenter::$template

- for IDE, to prevent bogus error notices
Debugger: $showLocation = TRUE
Composer: requires OrmInstaller

because installer cannot be required by the installed package itself
Tests: do not load directory libs/clevispace
BasePresenter: support for templates from packages