hdf5_chunking_query_bmr

[svn-r13373] Problem:
	Daily tests failed on smirom with g95

Solution:
	Our algorithm to detect size of Fortran real had a flaw: it didn't work
	when size of integer was bigger than real; fixed

Platforms tested:
	smirom with g95 and -r8, -i4, -r8 -i4 combinations of compilation flags to set
	different sizes of integers and real
	smirom with pgf90 using -i8 flag and without it
	linew in 32 and 64-bit modes