Major rework of headers inclusion style on behalf of lebedev.ri (issue 1079)

rtgui/histogrampanel.cc

@@ -16,13 +16,13 @@
  *  You should have received a copy of the GNU General Public License
  *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
  */
-#include <histogrampanel.h>
-#include <multilangmgr.h>
-#include <guiutils.h>
-#include <options.h>
-#include <string.h>
-#include <LUT.h>
-#include <rtimage.h>
+#include "histogrampanel.h"
+#include "multilangmgr.h"
+#include "guiutils.h"
+#include "options.h"
+#include <cstring>
+#include "../rtengine/LUT.h"
+#include "rtimage.h"
 
 extern Glib::ustring argv0;
 extern Options options;