Fixed event by month

Added link to picture, added order by to events by month, still working
on pagination
added year_payed field to users model
added *.idea to .gitignore
Updated readme file
removed migration and year_payed field
added pagination functionality
minor changes on pagination
change bad naming
added Payment model and removed amount_payed field from User
changed signal to use Payment as sender
added created_at field
did a few changes on the check_payment_amount signal
fixed AUTH_USER_MODEL issue
removed amount_payed from user admin
fixed Payment model and added migrations
added validators
fixed queryset in DirectiveView
fixed settings linked in template
changed AECC_UPRB_MEMBER_FEE to use env value
Merge branch 'devbranch' into paggination-to-people-present-in-the-event