[Azoth AS] Don't segfault on unknown entry at least.
[Azoth Xoox] Added jpeg and bmp to avatar filter.

Fixes #1251.
[AN] GetTypes() returns a set now.

Helps for #1255 for rules with more than one category.
[AN] Store itemText() instead of itemData() for audio params.

Hopefully finally fixes #1255.
[Poshuku] Don't reload history model on garbage collection.

Fixes #1256.
[Core] Set default locale according to language settings.
[LMP] Format datetime according to the default locale.