adding of categories works
base of admin raports
Merge branch 'feature/administration' of https://github.com/zpidreamteam/ZPI into feature/administration
category_add template minor changes
Merge commit 'a1309' into feature/administration
added comments panel
sending of newsletter
Merge branch 'feature/administration' of https://github.com/zpidreamteam/ZPI into feature/administration

Conflicts:
	app/admin_panel.py resolved
lightning speed
[#53] Working on admin/offers feature and ZeroDivisionError fixed in views.py (when calculating an offer rating)
[#53] Admin offer edit
Delete transaction, offer, user with archivization - in progress
Delete feature - Major code and db modification!
delete from newsletter
on going
Merge pull request #55 from zpidreamteam/feature/del_from_news

delete from newsletter
Delete feature upgrades
Merge branch 'feature/administration' of https://github.com/zpidreamteam/ZPI into feature/administration
Merge branch 'feature/administration' into develop
Migration file, merge administration