rename method to conform with other custom analysis methods

src/main/java/org/elasticsearch/index/analysis/AnalysisModule.java

@@ -146,7 +146,7 @@ public class AnalysisModule extends AbstractModule {
         return this;
     }
 
-    public AnalysisModule addTokenizerFactory(String name, Class<? extends TokenizerFactory> tokenizer) {
+    public AnalysisModule addTokenizer(String name, Class<? extends TokenizerFactory> tokenizer) {
         tokenizers.put(name, tokenizer);
         return this;
     }