Sync with underscore-java.

Author: javadev

pom-pack.xml

@@ -91,6 +91,7 @@
                   <option>-keep public class com.github.underscore.Optional { *; }</option>
                   <option>-keep public class com.github.underscore.PredicateIndexed { *; }</option>
                   <option>-keep public class com.github.underscore.Template { *; }</option>
+                  <option>-keep public class com.github.underscore.Trie { *; }</option>
                   <option>-keep public class com.github.underscore.Tuple { *; }</option>
                   <option>-keep public class com.github.underscore.lodash.Base32 { *; }</option>
                   <option>-keep public class com.github.underscore.lodash.Json { *; }</option>