Migrate to 0.7

[Chr12t0pher]

Will also include a variety of new features and improvements, potentially including:

• [x] Remote refreshing of scenes.
• [x] Asset preloading.
• [x] Stream start, and loading scenes.
• [x] Improved strawpoll visuals (will go where champ-stats goes).
• [x] Synchronised timer time.
• [x] Support for animated backgrounds on all scenes (won't be implemented in all at merge due to performance constraints).

  Status by panel

• [x] scenes-panel
• [x] obs-panel
• [x] strawpoll-panel
• [x] casters-panel

  Status by scene

• [x] start
• [x] coming-up
• [x] champ-select
• [x] loading
• [x] in-game
• [x] analysis
• [x] end

  Status by issue

• [x] #4
• [x] #6
• [x] #10