What I expected to happen was...:

NOTE: ISSUE STILL PERSISTS AFTER BUGFIX 0.7.1

When sunlight comes over, all hostile mobs that are vulnerable to sunlight will be lit on fire.

What actually happened was...:
You can light any block or mob on fire and they will have a fire animation, but when the night-time hostile mobs come in contact with sunlight, they still emit smoke instead of fire (even though lighting them on fire with flint and steel shows the actual animation that's suppose to occur in the first place, so I don't see why this wasn't implemented. I assume it's a bug)

Steps to Reproduce:
1. Wait for night time, let hostile mobs such as zombies, skeletons, spiders spawn
2. Wait till day-time, observe hostile mobs as sun-light comes in contact with them
3. Watch mobs burst into smoke and not into flames. They should be bursting into flames instead when coming in contact with sunlight. Flint and Steel lets them have a fire animation, but sunlight doesnt? Please fix
Thanks!