Added header panel
Merge branch 'master' of https://github.com/kuriozal/hurtownia.git

Conflicts:
	wholesaler/src/main/java/pl/jedraszczyk/wholesaler/gui/panels/LoginPanel.java
	wholesaler/src/main/java/pl/jedraszczyk/wholesaler/gui/panels/RegistrationPanel.java
Merge branch 'master' of https://github.com/kuriozal/hurtownia.git

Conflicts:
	wholesaler/src/main/java/pl/jedraszczyk/wholesaler/gui/panels/LoginPanel.java