Upgrade Tika to 1.4.

Closes elastic#36.

Author: dadoonet

README.md

@@ -8,7 +8,7 @@ In order to install the plugin, simply run: `bin/plugin -install elasticsearch/e
     ------------------------------------------------------
     | Attachment Mapper Plugin | ElasticSearch    | Tika |
     ------------------------------------------------------
-    | 1.9.0-SNAPSHOT (master)  | 0.90.3 -> master | 1.2  |
+    | 1.9.0-SNAPSHOT (master)  | 0.90.3 -> master | 1.4  |
     ------------------------------------------------------
     | 1.8.0                    | 0.90.3 -> master | 1.2  |
     ------------------------------------------------------

pom.xml

@@ -67,7 +67,7 @@
         <dependency>
             <groupId>org.apache.tika</groupId>
             <artifactId>tika-parsers</artifactId>
-            <version>1.2</version>
+            <version>1.4</version>
             <scope>compile</scope>
         </dependency>