Bugfixes Galore

• Spells use action dice correctly (on Foundry v0.7.x)
• Mercurial effects can be rolled from the Spell item sheet - uses a table of effects if present
• Hooks for integration with compendiums to allow use of table driven features with zero configuration
• Changes to Disapproval compendium setting show up on reloading the sheet as opposed to refreshing the browser
• Fixes for item sheets, especially the description field on custom skills, spurious scrollbars that would display in Firefox, and the description and mercurial magic fields on the spell sheet
• Fix Halfling class feature descriptions
• Fix tab order of the saves on upper level sheets
• Opt-in and add a dependency on the bug-reporter module to streamline submission of bugs
• Use Duvall font for headings in journal entries for a DCC vibe