Initial commit
add mnesia 4.8
Merge branch 'develop' into merge_4.8

Conflicts:
	doc/src/notes.xml
	examples/mnesia_tpcb.erl
	src/Makefile
	src/mnesia.erl
	src/mnesia.hrl
	src/mnesia_checkpoint.erl
	src/mnesia_controller.erl
	src/mnesia_dumper.erl
	src/mnesia_event.erl
	src/mnesia_frag.erl
	src/mnesia_index.erl
	src/mnesia_lib.erl
	src/mnesia_loader.erl
	src/mnesia_locker.erl
	src/mnesia_log.erl
	src/mnesia_monitor.erl
	src/mnesia_recover.erl
	src/mnesia_schema.erl
	src/mnesia_sup.erl
	src/mnesia_tm.erl
	test/Makefile
	test/mnesia.spec
	test/mnesia_SUITE.erl
	test/mnesia_config_test.erl
	test/mnesia_measure_test.erl
	test/mnesia_recovery_test.erl
	test/mnesia_test_lib.erl
	vsn.mk
add callback to external_mod
upd external oid