fixed Cameras joint limit

data/RobotAPI/robots/Armar3/ArmarIII-Head.xml

@@ -189,7 +189,7 @@
         </Transform>
         <Joint type="revolute">
             <Axis x="0" y="0" z="-1"/>
-            <Limits unit="degree" lo="-24" hi="5"/> <!-- Real high limit is 27. Deactivated to avoid unnatural poses-->
+            <Limits unit="degree" lo="-20" hi="5"/> <!-- Motor encoder gives values until -24, but eyes only move until -20 or -21 -->
             <MaxVelocity unit="radian" value="1"/>
             <MaxAcceleration value="10"/>
             <MaxTorque value="3000"/>