Slight refactor.

Remove all `else` keywords from __invoke()
Add enableRegistration option

Adds enableRegistration as an option when embedding the login form on a page
Fix: Remove unused imports
Fix: UserEntityInterface should probably be UserEntity
Merge pull request #494 from localheinz/bugfix/undefined-class

Fix: Undefined class
Merge pull request #471 from chadicus/master

Add enableRegistration option to ZfcUserLoginWidget::__invoke()
Merge branch 'localheinz-bugfix/unused-imports'
Fix mergeconflict
Add typehinting for validators
PHPCS fixes
Merge pull request #514 from ojhaujjwal/feature/type-hinting

Add typehinting for validators
[BC BREAK] Remove edit functionality
Clean Module.php so config is cacheable
Move wiki to docs
Merge pull request #525 from Eye4web/clean-modulephp

[BC BREAK] Clean Module.php so config is cacheable
Merge pull request #527 from Eye4web/docs

Move wiki to docs
Merge branch 'remove-user-edits' of github.com:Eye4web/ZfcUser into Eye4web-remove-user-edits

Conflicts:
	Module.php
[BC BREAK] Remove captcha
Merge pull request #528 from Eye4web/remove-captcha

[BC BREAK] Remove captcha