Update version numbers and changelog.
Merge pull request #76 from haizaar/master

Tornado 4.0 compatablity
Update version number, changelog and copyright.
Merge pull request #78 from haizaar/master

Fixed link in REAME. Closes #77
Merge pull request #80 from haizaar/master

Catching ALL types of early error. Fixes #79.
Update changelog, version numbers and Travis CI configuration.
Fixed Psycopg2 link error.
Merge pull request #81 from kamelzcs/master

Fixed Psycopg2 link error.
Using aliasing in ping command. Fixes #74.

Signed-off-by: Zaar Hai <haizaar@haizaar.com>