Lots of merging of patches into babeltrace to ensure lttngtop does not remain a fork of babeltrace, still need to merge the mmap patch for live reading and most of the custom babeltrace code should be mainlined.

This week : start to work on automating the syscalls prototype export, to give an easy and clean way to create up to date syscalls probe in lttng-modules. Also finish the mainlining and rebase lttngtop to this cleaner code base.