Simplify some stuff.

Signed-off-by: crynobone <crynobone@gmail.com>
Prepare for v2.2.4 release.

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

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.2'

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

Conflicts:
	src/Html/Table/Grid.php