Use log module from xcp-idl rather than xen-api-libs-transitional

Signed-off-by: Jon Ludlam <jonathan.ludlam@eu.citrix.com>

Conflicts:
	ocaml/OMakefile
	ocaml/database/OMakefile
	ocaml/db_process/OMakefile
	ocaml/db_process/xapi_db_process.ml
	ocaml/graph/OMakefile
	ocaml/lvhdrt/OMakefile
	ocaml/mpathalert/OMakefile
	ocaml/multipathrt/OMakefile
	ocaml/perftest/OMakefile
	ocaml/test/OMakefile
	ocaml/util/OMakefile
	ocaml/util/util_inventory.ml
	ocaml/xapi/OMakefile
	ocaml/xapi/xapi.ml
	ocaml/xenops/OMakefile
Remove log from META files

Signed-off-by: Jon Ludlam <jonathan.ludlam@eu.citrix.com>
Replace all occurrences of 'or' with '||' to work with OCaml 4.01.0