FVTT 0.8.x support

[wrycu]

Check the following:

• Settings save/load properly
• Scene menu works
• Attack animations work, including custom ones, restoring to default, and rolling dice from weapons/skills
• Talent checker works and adds the expected status when relevant (with and without statusiconcounter)
• Opening crawls can be created and launched
• Auto-renaming of characters for combat works properly
• Dice helper works properly
• Strain combat reminder works properly
• Shop setup, recreation, and purchasing works properly
• Data pad creator works
• Bounty creator works

And further oddities:

• File pickers are the relevant kind (image, video, audio)
• Intro crawl sound is no longer tied to the intro crawl window - we need to find some way to cancel the sound if the window is closed

[wrycu]

Right off the bat, settings are not loading properly:

and the scene menu is not working:

[wrycu]

I'm going to give things a once over again to make sure everything is working, but I believe we now support 0.8.x. I've also addressed any deprecation warnings for 0.9.x, so hopefully the transition there is smoother.

[wrycu]

Remaining items from my last pass:

• Custom attack animations per item are throwing 0.9.x warnings
• Attack animations are generating 0.9.x warnings
• NPC re-namer should only run on GM side
• Shop generation is not properly deleting old items
• Strain reminder should only run on GM side
• Custom attack animation browser is an image browser

[wrycu]

okay, this is good to go. I'll close it out. I want to improve the shop a bit more (#56) and close #51 and I'll make a 0.8.x release.