Develop update

See merge request !1

* DataManager: fix FormatAttribute, FormatRace

* update FormatAttribute, FormatRace

* DataManager: fix FormatType

* update FormatType

* DataManager: fix FormatSetName

* DataManager: fix FormatLinkMarker

* merge

* DataManager: fix GetNumString

* rebuild class ustring16 from edopro version

* add stringw conversion

core::stringw in current version does not have data()

* add CGUITTFont::drawUstring

* use drawUstring

* update DrawShadowText

* fix Game::lpcstring

* fix DuelInfo::vic_string

* add PACK_MAX_SIZE

* update include files in DataManager

* update DataManager::Error

* increase bucket count

* reorder

* DataManager: add datas_begin(), strings_begin()

* replace

max length of filename should be determined by file system

This reverts commit b05e0c96.

* update DataManager::GetData()

* class DataManager: use const member function