Remove warnings

Update Ghoul repository
Fix spelling mistake in openspace.cfg

include/openspace/network/messagestructures.h

@@ -66,7 +66,7 @@ struct CameraKeyframe {
         // Follow focus node rotation?
         buffer.insert(buffer.end(), reinterpret_cast<char*>(&_followNodeRotation), reinterpret_cast<char*>(&_followNodeRotation) + sizeof(_followNodeRotation));
 
-        int nodeNameLength = _focusNode.size();
+        int nodeNameLength = static_cast<int>(_focusNode.size());
 
         // Add focus node
         buffer.insert(buffer.end(), reinterpret_cast<char*>(&nodeNameLength), reinterpret_cast<char*>(&nodeNameLength) + sizeof(nodeNameLength));

include/openspace/util/timeline.h

@@ -91,6 +91,6 @@ bool compareKeyframeTimeWithTime(const KeyframeBase& a, double b);
 
 } // namespace openspace
 
-#include <openspace/util/timeline.inl>;
+#include <openspace/util/timeline.inl>
 
 #endif // __OPENSPACE_CORE___TIMELINE___H__