Upgrade soy to 2017-02-01

Also add additional dependencies:

- com.google.common.html.types
- com.google.protobuf

Change-Id: I79b692662b87096f153a4ddf277fc544219c8c1e

lib/soy/BUILD

diff --git a/lib/soy/BUILD b/lib/soy/BUILD
index 4f19143..2cf2050 100644
--- a/lib/soy/BUILD
+++ b/lib/soy/BUILD
@@ -4,6 +4,12 @@
 
 java_library(
     name = "soy",
-    exports = ["@soy//jar"],
-    runtime_deps = ["@icu4j//jar"],
+    exports = [
+      "@soy//jar",
+    ],
+    runtime_deps = [
+      "@icu4j//jar",
+      "@html_types//jar",
+      "@protobuf//jar",
+    ],
 )