ttlser fixed anon entities bug plus version bump
ttlser fixed anon entities bug plus version bump

In orderSubects we now no longer include blanknodes at top level if they
have references. This prevents BNodes from leaking into serialized form.

With this fix and the major improvements in memory consumption it seems
like a bump to 1.2.0 is warranted.

tgbugs/pyontutils,tgbugs/pyontutils,tgbugs/pyontutils,tgbugs/pyontutils