Merge remote-tracking branch 'origin/poppler-0.22'

Conflicts:
	splash/Splash.cc
diff --git a/splash/Splash.cc b/splash/Splash.cc
index 1f100fe..fd618cd 100644
--- a/splash/Splash.cc
+++ b/splash/Splash.cc
@@ -1494,7 +1494,7 @@
 #endif
 
     if (t != 0) {
-      pipe->shape = (adjustLine) ? div255((int) lineOpacity * aaGamma[t]) : aaGamma[t];
+      pipe->shape = (adjustLine) ? div255((int) lineOpacity * (double)aaGamma[t]) : (double)aaGamma[t];
       (this->*pipe->run)(pipe);
       updateModX(x);
       updateModY(y);