Add new logo courtesy of @izuddinhelmi

Signed-off-by: crynobone <crynobone@gmail.com>
Add boolean string replacement tweak.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.1' into 2.2
Merge branch '2.2'

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

Conflicts:
	app/lang/en/validation.php
	app/views/hello.php