created windows to 9 function
added windows to 9 function
function 11 and 12 work started (did not finished)
repaired delete
refactor
Merge branch 'master' into gui_creating

Conflicts:
	sem1/RBTree/src/test/RBTreeTest.java
added function 11, 12
added windows for functions 13 - 16
added all functions windows
refactor