Added median and fixed a couple of ui problems.

Change-Id: I47ecfacf66ef7ad2fb6e63131efca30cdf63bd97
Signed-off-by: Benjamin Ebling <benjamin.ebling@sap.com>
Extension-Interfaces umbenannt

Change-Id: I3ce909b47ab72bfb5a2756478585a6b186186cd1
Signed-off-by: Benjamin Ebling <benjamin.ebling@sap.com>
Merge pull request #35 from TheHardcoder/master

please pull new version with median and bug fixes