Register uppercase as an exposed ES token filter.

Just follow "lowercase" token filter example and register "uppercase" token filter as an exposed token filter. This will not, by itself, test whether ES is correctly handling "uppercase" TF; this is more of a "code as documentation" fix.

Author: tmacam

src/test/java/org/elasticsearch/index/analysis/AnalysisFactoryTests.java

@@ -139,6 +139,7 @@ public void testTokenizers() {
         put("trim",                      TrimTokenFilterFactory.class);
         put("truncate",                  TruncateTokenFilterFactory.class);
         put("turkishlowercase",          LowerCaseTokenFilterFactory.class);
+        put("uppercase",                 UpperCaseTokenFilterFactory.class);
         put("worddelimiter",             WordDelimiterTokenFilterFactory.class);
 
         // TODO: these tokenfilters are not yet exposed: useful?
@@ -189,8 +190,6 @@ public void testTokenizers() {
         put("type",                      Void.class);
         // puts the type into the payload
         put("typeaspayload",             Void.class);
-        // opposite of lowercase...
-        put("uppercase",                 Void.class);
     }};
 
     public void testTokenFilters() {