Updated Travis setup [ci skip]
PHP renderer generator: moved source optimization routines to their own class
PHP renderer generator: moved serialization of the internal representation to PHP to its own class
MediaEmbed: updated TeamCoco
Synced to a1abb9a416eed3d134b63a359f0bef72f1e3097b
Synced to 6b1675200461d6896dba2d4a286acaa939949f4a
Synced to 6b1675200461d6896dba2d4a286acaa939949f4a