Modify .travis.yml to test on mysql, sqlite and postgres.

Signed-off-by: crynobone <crynobone@gmail.com>
Fixed configuration on mysql and pgsql

Signed-off-by: crynobone <crynobone@gmail.com>
Add more folders to code coverage.

Signed-off-by: crynobone <crynobone@gmail.com>
Prepare for v1.0.2 release.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch 'staging' into develop