note pngload change
Merge remote-tracking branch 'origin/7.40'

Conflicts:
	TODO
fix similarity rotate + scale

thanks Topochicho

see https://github.com/jcupitt/libvips/issues/154
Merge branch 'master' of github.com:jcupitt/libvips

Conflicts:
	ChangeLog
	TODO
Merge remote-tracking branch 'origin/7.40'

Conflicts:
	ChangeLog