After theme is activated I create custom table in database for newsletter. I understand that I can’t do nothing like that with database? Please don’t do this http://envato.d.pr/1edkr/5yPaEh3B
The localization file should be in English and delivered as .POT file. .POT will contain all translation strings - but PoEdit do not create .POT file, only .po …
Third party scripts/ styles don’t need to be prefixed to avoid double loading. ref:
1.) you should put that into plugin. BTW. Using existing 3rd party newsletter plugins is IMHO much better approach, unless you are offering something specific with your own implementation