Improve support for other languages (UTF-8 characters) in queries

Let's get a simple object with Id and Indexed field called name. Then fill it with two lagnguage values (russian and english in my case). Now make a query like

query().order(CallTheme_.name).build().subscribe().observer ...

The result is shown in application screenshot and you can see that case insensitive collation order for english language is different that a collation order for russian, i.e. did't work for russian either.

先使用一個包含 Id 欄位和已建立索引的 name 欄位的物件來重現問題，並填入俄語和英語值。執行所示的 query().order(CallTheme_.name).build() 流程，並比較不區分大小寫的排序；當 collation 為兩種語言都產生正確的順序時，即表示完成。