Update runtime to latest SHA.

Summary:
Runtime now requires all plans conform to NSCopying. This did not require any changes in this library because CAAnimation already conforms to NSCopying.

Also increased warning strictness.

Reviewers: O4 Material Motion Apple platform reviewers, O2 Material Motion, markwei

Reviewed By: O4 Material Motion Apple platform reviewers, O2 Material Motion, markwei

Tags: #material_motion

Differential Revision: http://codereview.cc/D1612

Podfile

@@ -18,6 +18,9 @@ abstract_target 'MaterialMotionCoreAnimationFamily' do
     installer.pods_project.targets.each do |target|
       target.build_configurations.each do |configuration|
         configuration.build_settings['SWIFT_VERSION'] = "3.0"
+        if target.name.start_with?("Material")
+          configuration.build_settings['WARNING_CFLAGS'] ="$(inherited) -Wall -Wcast-align -Wconversion -Werror -Wextra -Wimplicit-atomic-properties -Wmissing-prototypes -Wno-error=deprecated -Wno-error=deprecated-implementations -Wno-sign-conversion -Wno-unused-parameter -Woverlength-strings -Wshadow -Wstrict-selector-match -Wundeclared-selector -Wunreachable-code"
+        end
       end
     end
   end

Podfile.lock

@@ -16,13 +16,13 @@ EXTERNAL SOURCES:
 
 CHECKOUT OPTIONS:
   MaterialMotionRuntime:
-    :commit: e002e18e8878f67ca5ae17ee0ce8a05357254bc4
+    :commit: f31cbc6d9b78576e85410b82942a25a53a4e5f6e
     :git: https://github.com/material-motion/material-motion-runtime-objc.git
 
 SPEC CHECKSUMS:
   MaterialMotionCoreAnimationFamily: 363b6b0343e46950478ab5487a38445cf966de57
   MaterialMotionRuntime: 142f75ce2cf2682458aa9631541b8644b653ef34
 
-PODFILE CHECKSUM: cbc66909b4f6fa2b61d6bb4ec5bd4ee73becdf43
+PODFILE CHECKSUM: 94030ee238c2efeb443b51e02663689c8f840c4f
 
 COCOAPODS: 1.0.1