post-merge fixes: mysql-5.1-rep+2-delivery1 --> mysql-5.1-rpl-merge

rpl.rpl_heartbeat_basic and rpl.rpl_cross_version set as experimental.

mysql-test/collections/default.experimental

@@ -23,6 +23,9 @@ rpl.rpl_plugin_load*  @solaris           # Bug#47146
 rpl.rpl_row_create_table*                # Bug#45576: rpl_row_create_table fails on PB2
 rpl.rpl_log_pos*                         # Bug#47743 2009-10-02 alik rpl.rpl_log_pos fails sporadically
 rpl.rpl_trigger*                         # Bug#46656 2009-09-25 alik InnoDB plugin: memory leaks (Valgrind)
+rpl.rpl_heartbeat_basic                  # BUG#43828 2009-10-22 luis fails sporadically
+rpl.rpl_cross_version                    # BUG#43913 2009-10-22 luis rpl_cross_version fails with symptom in described in bug report
+
 
 # Declare all NDB-tests in ndb and rpl_ndb test suites experimental.
 # Usually the test cases from ndb and rpl_ndb test suites are not run in PB,