BLD: disable MySQL in requirements-2.7 as its failing the building process
API: allow the iloc indexer to run off the end and not raise IndexError (GH6296)
Merge pull request #6299 from jreback/iloc_max

API: allow the iloc indexer to run off the end and not raise IndexError (GH6296)
FIX: pytables: fixed str truncate for numpy<1.7.2

prior to numpy 1.7.2 long strings got truncated when read back from a
hdf5 file