Update code style to not indent case headers inside switches.
Barrel-PR-1st-commit

Because a steel jerrycan of whiskey isn't classy enough for my liquor
cabinet. My 1st commit :)
Name change for barrel whiskey

Wanted to have a chance for this to spawn in liquor stores, but not sure
how to get around the already named whiskey
Commas names and liquor

Thank you for the review folks, updated changes/suggestions
Add a default item highlight tile if one does not already exist in the tileset
Format and clean up functions just a little
Rename "code_doc/" to just "doc/".
Move all the sources to a src/ directory.
Move lua stuff to "src/lib/catalua/".
Add JsonArray::skip_value for ignoring values when iterating.
Allow raw json data to be extracted from JsonObjects and JsonArrays.
Add empty() method to JsonArray to check if empty.
Tidy some comments.
Add methods to JsonObject to non-fatally set values by reference.
Change JsonDeserializer to take JsonIn, not always JsonObject.
Mark some info getter methods const.
Add constructor for empty JsonObject.

Conflicts:
	json.cpp
Add size() empty() and get_raw() methods to JsonObject.
Add read_into() methods to JsonArray.
Add empty virtual destructor to Json(De/S)erializer.