Upgrade libphonenumber to v4.7

Change-Id: Ia10e96d76b830f264b51431700a2edee99def6ea
diff --git a/java/release_notes.txt b/java/release_notes.txt
index 5970332..ecfdd28 100644
--- a/java/release_notes.txt
+++ b/java/release_notes.txt
@@ -1,3 +1,12 @@
+March 16th, 2012: libphonenumber-4.7
+* Bug fixes
+ - Now return "too long" for input that is longer than 250 chars when parsing
+* Metadata changes
+ - AC,AM,AT,AZ,BF,BR,BY,BZ,CR,CU,DE,DJ,EE,EG,ET,GA,GH,HK,HN,ID,IN,JP,KE,KG,KH,KR,KW,KY,LB,LU,MA,MD,
+   MK,NA,NE,NZ,SA,SB,SC,SE,SL,SN,UZ
+ * Refactoring of test classes so that tests requiring the test metadata to be loaded have a common
+   base class which handles this.
+
 February 9th, 2012: libphonenumber-4.6
 * Bug fixes
  - Fix for formatByPattern to enable RFC formatting to work