Remove default mod

flare-engine now supports loading the default mod from either an
installed copy of flare-engine, or from a local folder like
`~/.local/share/flare/default/mods/`.
Merge remote-tracking branch 'upstream/master' into fixes
Data for StatBlock refactor
Merge pull request #317 from dorkster/statblock

Data for StatBlock refactor
Merge pull request #319 from stefanbeller/master

<igorko> inventory slots order. To navigate with keyboard in correct order
Splitting up credits for mods.
Add repeat=false to books in Brothers' Lair maps

This fixes a bug where the player couldn't get past the bookcase door in
the Ice Hall. Previously, pressing ACCEPT near that door would
continuously trigger one of the two nearby books.
Merge pull request #320 from stefanbeller/credits

Splitting up credits for mods.
Merge pull request #313 from dorkster/fixes

Remove default mod
Chinese by lonsine
Add Gold item
Add sfx/animations to gold loot and set currency_id
Fixes to CMakeLists

* Remove BINDIR, as we don't need it
* Move "flare-game" from the DATADIR variable to the INSTALL command,
like it's done for "default" in flare-engine
Add aim_assist to alpha_demo's engine/misc.txt
Merge pull request #323 from dorkster/fixes

Cmake cleanup and aim_assist for alpha_demo
Merge pull request #322 from dorkster/books

Add repeat=false to books in Brothers' Lair maps
Merge remote-tracking branch 'upstream/master' into currency

Conflicts:
	mods/alpha_demo/engine/misc.txt
Remove obsolete data from engine/loot.txt
Fix copy-paste error for coin animations
Merge pull request #324 from dorkster/currency

Gold as an item