Merge pull request #927 from mdboom/vo/table_read_unnamed_tables

Make Table.read find VO tables with no names
Conflicts:

	astropy/io/votable/connect.py
	astropy/io/votable/tests/data/names.xml
	astropy/io/votable/tests/table_test.py
This test should have been marked xfail for Numpy < 1.5 when doing the merge; I think this mark was taken out on master since we dropped Numpy 1.4 support for 0.3.