Bill submissions bugs; CSS file references

Lots of little bugs in bill submission process. This is take one of
many...

Also, moved image files needed for CSS into correct directory
Merge branch 'master' of https://github.com/Jacketpages/Jacketpages
Merge branch 'master' into SGA-IT

Conflicts:
	app/Config/budget_tables.sql
	app/Controller/BudgetLineItemsController.php
	app/Controller/BudgetsController.php
	app/View/BudgetLineItems/edit.ctp
	app/View/Budgets/expenses.ctp
	app/View/Budgets/fundraising.ctp
	app/View/Budgets/member_contributions.ctp
	app/View/Budgets/submit.ctp
	app/View/Budgets/summary.ctp
	app/View/Elements/budgetLineItems/line_item_enter.ctp
	app/View/Elements/budgetLineItems/multi_enter.ctp
	app/View/Elements/budgets/fundraising_multi.ctp
	app/View/Elements/budgets/fundraising_multi_enter.ctp
	app/webroot/js/budgetlineitems/multi_enter.js
	app/webroot/js/budgets/expenses_multi_enter.js
	app/webroot/js/budgets/fundraising_multi_enter.js