Crash on Mac's with case-sensitive file systems

Some folks with case-sensitive file systems on Macs have reported crashes at startup. This crash is caused by a failure to load

plugins/platforms/libqcocoa.dylib

In the Mac bundle, this file is located under

ParaView.app/Contents/Plugins/platforms/libqcocoa.dylib

but it is expected to be under

ParaView.app/Contents/plugins/platforms/libqcocoa.dylib (Plugins vs. plugins)

Either change Plugins to plugins or add Plugins to the list of plugin paths.