XSB Src (SVN)-old

Integrated the debugger.
Changed wrapper to use str_match
Changed ultimate_isa to immediate_isa
Other minor cleanups.

added str_match.
Changed offsets in str_sub to start from 0

renamed bootstrap_flora/flora_shell in the old flora, so they won't clash
with Flora-2

replaced flora with flora2 in the build
added str_match.

took care of the time.h/ sys/time.h problem.

change call(X) to X

bug fix in flora_decde_predicate

Fix shave typo.

(1) enable bform in rule heads
(2) enhance flrwrapper. new type 'flora' added that can be
used to decoded builtin predicates in trailers
(3) encode predicates in the trailers like firstorder but
with the normal prefix (not first order prefix)
(4) add new directive for .fli files:
FL_FLOGICSTATIC for firstorder like trailer predicates
FL_FLORAPATCH for generating Flora-specific patch rules
(5) enhance loading & compiling routines

Some changes to reflect recent code additions, get_char/2, put_char/2 etc.