More animation and dialog

The animation system now has enough in it to actually let the NPC walk around in a scripted way. Yay!

One of the conversation paths is actually fully fleshed-out! Yay!

Many more of the conversation paths are getting close to done! Yay!

My placeholder art is still garbage and missing many key poses! Yay!

Also I've started streaming my dev sessions over on my twitch.tv channel. Yay?

Other minor changes:

• Audio tweaks to the textbox and main menu
• Added padding between the FlappyBat sprite frames to fix an occasional glitch that I kept pointedly ignoring
• Finally made a common library function to handle process queues (used in like 6 different places and a really common pattern so it's about time I finally consolidated that code)