Added support for autodetecting the system monitor color profile also on Linux

Code borrowed from Geeqie

rtengine/init.cc

@@ -41,7 +41,6 @@ int init (const Settings* s, Glib::ustring baseDir, Glib::ustring userSettingsDi
 {
     settings = s;
     ICCStore::getInstance()->init (s->iccDirectory, Glib::build_filename (baseDir, "iccprofiles"), loadAll);
-    ICCStore::getInstance()->findDefaultMonitorProfile();
     DCPStore::getInstance()->init (Glib::build_filename (baseDir, "dcpprofiles"), loadAll);
 
     CameraConstantsStore::getInstance ()->init (baseDir, userSettingsDir);