No escaping of HTML by default. Added Compiler builder mechanism to specify

default HTML escaping behavior. Possibly pattern overkill, but if we add any
other options later, this will scale nicely.

src/test/java/com/samskivert/mustache/MustacheTest.java

@@ -46,7 +46,7 @@ public class MustacheTest
     }
 
     @Test public void testCallSiteReuse () {
-        Template tmpl = Mustache.compile("{{foo}}");
+        Template tmpl = Mustache.compiler().compile("{{foo}}");
         Object ctx = new Object() {
             String getFoo () { return "bar"; }
         };
@@ -56,7 +56,7 @@ public class MustacheTest
     }
 
     @Test public void testCallSiteChange () {
-        Template tmpl = Mustache.compile("{{foo}}");
+        Template tmpl = Mustache.compiler().compile("{{foo}}");
         assertEquals("bar", tmpl.execute(new Object() {
             String getFoo () { return "bar"; }
         }));
@@ -113,9 +113,15 @@ public class MustacheTest
         test("foobar", "foo{{! nothing to see here}}bar", new Object());
     }
 
+    @Test public void testEscapeHTML () {
+        assertEquals("<b>", Mustache.compiler().compile("{{a}}").execute(context("a", "<b>")));
+        assertEquals("&lt;b&gt;", Mustache.compiler().escapeHTML(true).
+                     compile("{{a}}").execute(context("a", "<b>")));
+    }
+
     protected void test (String expected, String template, Object ctx)
     {
-        assertEquals(expected, Mustache.compile(template).execute(ctx));
+        assertEquals(expected, Mustache.compiler().compile(template).execute(ctx));
     }
 
     protected static Object context (Object... data)