prep for 4.0.0-alpha-1 release -update unit test

Author: tballison

tika-core/src/test/java/org/apache/tika/TikaIT.java

@@ -27,8 +27,10 @@ public class TikaIT {
     public void testToString() {
         String version = new Tika().toString();
         assertNotNull(version);
-        assertTrue(
-                version.matches("Apache Tika \\d+\\.\\d+\\.\\d+(-(?:ALPHA|BETA)\\d*)?(?:-SNAPSHOT)?"));
+        assertTrue(version.matches(
+                "Apache Tika \\d+\\.\\d+\\.\\d+"
+                        + "(?:-(?:ALPHA|BETA)\\d*|-(?:alpha|beta|milestone|rc)-\\d+)?"
+                        + "(?:-SNAPSHOT)?"));
     }
 
 }