Imported Translations from Transifex

Change-Id: I4f7fa49a954d773b2f8784511cc9017ed9226e7c
Extension of DBDuplicateEntry exception

Added new field 'value' for DBDuplicateEntry exception.
It shows duplicated value for mysql and postresql 9.x engines
and is read from the error message using regular expressions.

The duplicated value can't be extracted from SQLite error messages,
so we do our best here for other db backends that we support.

Change-Id: I647e314cafe8ceb570bf18948d6ab83ab6afef97
Merge "Imported Translations from Transifex"
Merge "Extension of DBDuplicateEntry exception"