H5Py/H5Py: 2.7.1

First bugfix release in 2.7 series. This has several critical fixes for possible segfault and deadlocks. Fixed critical issue with cyclic gc which resulted in segfaults Avoid unaligned access fixing h5py on sparc64 Fixed compilation issues for some library locations Fix deadlock between phil and the import lock in py2 Improve windows handling if filenames Allow close to be called on file multiple times Warn on loaded vs complied hdf5 version issues Fix overflow computing size of dataset on windows Do not mangle capitalization of filenames in error messages Fix longdouble on ppc64le Fix compounds structs with variable-size members