Update license, badge and changelog.

Signed-off-by: crynobone <crynobone@gmail.com>
Use preinstall composer on travis.

Signed-off-by: crynobone <crynobone@gmail.com>
Docblock improvement.

Signed-off-by: crynobone <crynobone@gmail.com>
Allow to get exceptions parameters.

Signed-off-by: crynobone <crynobone@gmail.com>
fixed coverage.

Signed-off-by: crynobone <crynobone@gmail.com>