Mesocrystal, Paracrystal now w/o camel case

GUI/Model/Sample/ParticleCompositionItem.cpp

@@ -65,8 +65,8 @@ std::unique_ptr<ParticleComposition> ParticleCompositionItem::createParticleComp
         } else if (auto* compositionItem = dynamic_cast<ParticleCompositionItem*>(p)) {
             if (auto P_child_composition = compositionItem->createParticleComposition())
                 P_composition->addParticle(*P_child_composition);
-        } else if (auto* MesocrystalItem = dynamic_cast<MesocrystalItem*>(p)) {
-            if (auto P_meso = MesocrystalItem->createMesocrystal())
+        } else if (auto* mesocrystalItem = dynamic_cast<MesocrystalItem*>(p)) {
+            if (auto P_meso = mesocrystalItem->createMesocrystal())
                 P_composition->addParticle(*P_meso);
         }
     }