hdf5_der

Fix for test_page_alignment in test/mf.c for stdio driver
The calculation of alignment is pushed up from the driver layer to H5FD_alloc() layer.
This is done so that the alignment addr and size can be returned to the H5MF layer without
changing the H5FD public interface.
src/H5MF.c and src/H5MFsection.c: modifications are mainly related to the change for vim tabstop settings.
Tested on ostrich, platypus, mayll, kituo, emu, osx1010test, quail.