Add PR #140, PR #141, and issue #60 to release notes.
Add PR #140, PR #141, and issue #60 to release notes.

Ernesto99/rethinkdb-net,kangkot/rethinkdb-net,nkreipke/rethinkdb-net,nkreipke/rethinkdb-net,kangkot/rethinkdb-net,bbqchickenrobot/rethinkdb-net,LukeForder/rethinkdb-net,LukeForder/rethinkdb-net,Ernesto99/rethinkdb-net,bbqchickenrobot/rethinkdb-net