v0.14.3.
Fixed subscription mode with expected messages.
On branch pubsub
modified:   lib/libra.js
modified:   package.json
v0.15.0.
Removed useless code like for status.quit.
Fixed bug for subscriptions/unsubscriptions.
On branch pubsub
modified:   Readme.md
modified:   lib/libra.js
modified:   package.json
modified:   test/push-subscription-mode-test.js
modified:   test/run.sh