Fix bug introduced previously...
Add a helpful suggestion
Whitespace fixes.
Whitespace fixes; minor documentation
Pretty-print the caught signal
Use std::yield not sched_yield
cogserver -- even prettier exception printing
SQL bugfix; was locking the wrong lock.
cogserver: cleanup logger message
Arghh. One last fix to the create lock.
get rid of the yield, its stupid
Use std::sleep_for except it not supported

on older compilers ... will have to wait for newer gcc & glibc
to be available on all platforms.
Change table to use bigint for uuids
sql: remove dead code
status update
Backing store performance optimization
Make use of the new ignore list
Cleanup AtomSpaceIml, mostly documentation

Also clarify semantics of some of the methods.
Minor performance optimization for NLP pipeline.
Shuffle around NLP atom types

These atom types, used to be used by RelEx, but are obsolete,
and so are removed. However, embodiment *also* uses them, but
in a completely different way. So move these over to be
embodiment-only atom types.