[svn-r19578] Bug fix for 1707 - H5Eset_auto causes a seg fault when an application uses -DH5_USE_16_API
with the 1.8 library to compile. The cause is from the mismatch of H5Eprint1 and H5Eprint2
set through H5Eset_auto. I changed the structure H5E_auto_t. I added a IS_DEDAULT flag in
it. Both H5Eprint1/2 are the default now. If the user sets his/her own printing function.
Then a call to H5Eget_auto1/2 will have to match H5Eset_auto1/2.
Tested on heiwa, jam, and amani.
The property change in configure.in, config, and Makefile.am came from the merge of the 1.8
library change.