Added motionblur postprocess shader.

Conflicts:

	indra/newview/skins/default/xui/en-us/floater_post_process.xml

indra/newview/app_settings/windlight/postprocesseffects.xml

@@ -175,6 +175,8 @@
 			<key>enable_gauss_blur</key>
 			<boolean>0</boolean>
       <key>enable_posterize</key>
+      <boolean>0</boolean>
+      <key>enable_motionblur</key>
       <boolean>0</boolean>
 			<key>gauss_blur_passes</key>
 			<integer>2</integer>
@@ -190,6 +192,8 @@
 			<real>1</real>
       <key>posterize_layers</key>
       <real>10</real>
+      <key>blur_strength</key>
+      <real>10</real>
     </map>
 	</map>
 </llsd>