fixed bug in split splitStringBySeparator function. Thanks @Dokurai

added search field

added loadFirst and loadLast options to sorting rules. Possible values:
1) on - applies to the entire mod list.
2) category - applies to all mods in one category
3) off - disabled

1) added support for sorting rules:
rules can be described in mod.info and sorting_rules.txt with 3 supported options: loadAfter, loadBefore, incompatibleMods
2) updated translation files
3) code cleaning

1) using own button onClick handlers to minimize risk of conflicts with other mods

1) a new category for sorting ("resource") has been added;
2) the CoreRequirements category has been removed: The topological sorting algorithm places a dependent mod before a mod that requires that dependency.
new category order: [“resource”, “map”, “vehicle”, “tweaks”, “code”, “clothes”, “ui”, “other”, “translation”]
3) small code rafactor

* испревлено неправильное определение CoreRequired модов
* возвращен список модов с предопределенным порядком загрузки: теперь моды [Mod Manager, Mod Manager: Server, ModOptions] будут находиться вверху

* now the mod name is shown in the pop-up window text instead of its ID
* added the same popup window to the server mod sorting

Meet the major update!
* completely updated sorting logic: now sorting works more correctly
* added new sorting categories: code, interface, transport, clothing, localization
* improved sorting of mods within each category.
* added a pop-up window with a warning about missing dependencies

* code refactor: removed code duplicates
* updated mods order: now maps will load before api/framework mods