Merge branch 'master' into dev

Author: wahln

.github/before_install_linux.sh

@@ -7,4 +7,4 @@ mv matRad/optimization/optimizer/ipopt.m optimization/optimizer/ipopt.m.bak
 
 octave --no-gui --eval "pkg install -forge dicom"
 octave --no-gui --eval "pkg install -forge nan"
-octave --no-gui --eval "pkg install -forge image"
+octave --no-gui --eval "pkg install \"https://downloads.sourceforge.net/project/octave/Octave%20Forge%20Packages/Individual%20Package%20Releases/image-2.14.0.tar.gz\""

examples/matRad_example2_photons.m

@@ -222,7 +222,7 @@
 % both plans
 ixOAR = 2;
 disp(resultGUI.qi(ixOAR).D_95);
-disp(resultGUI.qi_coarse(ixOAR).D_95);
+disp(resultGUI_coarse.qi(ixOAR).D_95);
 
 
 %%