First try for __po_hi_msg_append_data in po_hi_message.c
Last modifications on the files marshaller
Merge branch 'acsl_marshaller' of https://github.com/yoogx/polyorb-hi-c into acsl

Some files have been modify in the ACSL branch (Makefile...)
Comment Block suppressed
po_hi_message.c test files added
fix conflict in po_hi_utils.c and merge swap-byte branch
simple specification for __po_hi_get_time as we do not use the POSIX
etc. options (__po_hi_get_time always returns __PO_HI_UNAVAILABLE).

TBD: find a way to use the __PO_HI_UNAVAILABLE macro in specification.
force POSIX option and trivially change _po_hi_get_time spec (but not finished)
add invariant for __po_hi_time_t, but does not seem to be supported by
WP plugin...
add WP_VERBOSE variable to print goals and write proof obligations in
topdir/proof-obligations directory. Just use it with make wp-proof
FILES_TO_PROVE=blabla.c WP_VERBOSE=1 for instance (the integer does not
matter).
adding a specification from time.h saying that clock_gettime always succeeds
trying to prove __po_hi_get_time. Pb with types (uint32 vs long for
instance) and with specification of clock_gettime, too weak to be
useful. TBC.
specify and prove __po_hi_get_time function. clock_gettime from POSIX is
also specified and a ghost variable was necessary to separate parameter
of __po_hi_get_time from parameter of clock_gettime.
use predicate to verify consistency of __po_hi_time_t
minor typo
trying to prove __po_hi_get_time with timespec allocated on stack
Creating local branch time
Conflict solved
simple example with aliasing pv ont int*
simple test file with pointer on timespec. Modifying Makefile.am to be able to use specification of stdlib etc. from Frama-C