pre-merge fixes: Cppcheck issues, visual regression tests.

core/pipeline/abstractpipeline.cpp

@@ -278,8 +278,7 @@ namespace campvis {
 
     void AbstractPipeline::forceExecuteProcessor(AbstractProcessor* processor) {
         bool enabledState = processor->getEnabled();
-        int invalidationLevel = processor->getInvalidationLevel();
-
+        
         processor->setEnabled(true);
         processor->invalidate(AbstractProcessor::INVALID_RESULT);
         executeProcessor(processor);

modules/advancedusvis/processors/advancedusfusion.cpp

@@ -156,7 +156,6 @@ namespace campvis {
                     _shader->deactivate();
                     ImageData* id = new ImageData(img->getParent()->getDimensionality(), size, 3);
                     ImageRepresentationGL::create(id, resultTexture);
-                    const ImageMappingInformation& imi = img->getParent()->getMappingInformation();
                     id->setMappingInformation(img->getParent()->getMappingInformation());
                     cgt::TextureUnit::setZeroUnit();
 

modules/cudaconfidencemaps/processors/cudaconfidencemapssolver.cpp

@@ -100,7 +100,6 @@ namespace campvis {
             _solver.setAlphaBetaFilterParameters(p_filterAlpha.getValue(), p_filterBeta.getValue());
 
             cgt::ivec3 size = img->getSize();
-            size_t elementCount = cgt::hmul(size);
             auto image = (unsigned char*)img->getWeaklyTypedPointer()._pointer;
 
             // Copy the image on the GPU and generate the equation system