error changes
category changed to Category
Merge branch 'master' of https://github.com/GunpreetAhuja/LibreHatti into GunpreetAhuja-master

Conflicts:
	src/authentication/admin.py
	src/librehatti/catalog/models.py
Merge branch 'GunpreetAhuja-master'
Merge branch 'master' of https://github.com/GreatDevelopers/LibreHatti