Further refactoring of v2 B-tree code, moving toward being able to pass
a context information to a client's encode/decode callbacks.
Also, clean up of other minor compiler warnings and code formatting
issues.
Tested on:
FreeBSD/32 6.3 (duty) in debug mode
FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode
Linux/32 2.6 (jam) w/PGI compilers, w/default API=1.8.x,
w/C++ & FORTRAN, w/threadsafe, in debug mode
Linux/64-amd64 2.6 (smirom) w/Intel compilers, w/default API=1.6.x,
w/C++ & FORTRAN, in production mode
Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
w/szip filter, in production mode
Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
in production mode
Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in debug mode
Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode
Mac OS X/32 10.6.1 (amazon) in debug mode
Mac OS X/32 10.6.1 (amazon) w/C++ & FORTRAN, w/threadsafe,
in production mode
> 1.
Description: Added a new field 'app_count' to H5I_id_info_t struct, to track
the reference count on an id due to the application. the old 'count' field
tracks the total. Generally any id visible to the application gets placed
in app_count. Added app_ref boolean parameter to H5I_inc_ref, H5I_dec_ref,
H5I_register, H5I_clear_type, and a few other functions, to specify whether
the operation(s) being performed on the id(s) are due to the application
(TRUE) or not (FALSE). Test added for this case.
Tested: kagiso, smirom, linew (h5committest)
