added name support to devise
displayed owner and payer names for expenses and groups
devise name param permission for account update
display portions on groups show page
lists each expense and the current user will see what they owe for each expense and the total outstanding expenses for this group
Merge pull request #9 from elitenomad/marcus

added name support to devise
Merge branch 'master' of github.com:elitenomad/expense_tracker

manually solved routes conflits
Conflicts:
	config/routes.rb

set new root to pages/index
fixed schema problem on my side, maybe add and remove a space