fix(wizard): update close button to sync with PatternFly core
fix(wizard): update close button to sync with PatternFly core

https://github.com/patternfly/patternfly-ng/issues/161

patternfly/patternfly-ng,patternfly/patternfly-ng,dlabrecq/patternfly-ng,patternfly/patternfly-ng,dlabrecq/patternfly-ng,dlabrecq/patternfly-ng,dlabrecq/patternfly-ng,patternfly/patternfly-ng