hdf5_ep

[svn-r775] Changes since 19981021
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./src/H5I.c
	If we ran out of object ID's (which happens after about 67
	million requests) then we'd wrap back to the first possible ID
	but if we ran out a second time (after ~134 million requests)
	then H5I_register() failed.  Now it continues to wrap as often
	as needed.

	If we wrapped to the beginning of the possible ID's and then
	requested ID's till we got toward the end of the list then
	H5I_register() failed if the last possible ID's were in use.
	The new behavior is to try all possible ID's (not just higher
	ID's) before giving up.