Added membership, payment
Added accounting, transactions and expected income and expenses
Added pychache folders to ignore
Created abstract model for models with update, create
Wrote a command to generate expected income and expenses for every month
Added common /_py_cache_ to ignore
Added ignore folder
Added payment method
Added pychache to ignore
Merge branch 'master' of git@github.com:elifkus/Hackerhane.git
Css ve js files added
Added member view