Fix for Bugs 3998, 3968. Includes other markup corrections and reformats

Fix for Bugs 3998, 3968. Includes other markup corrections and reformats

Bug 3998: Confusing warning on budget add page
Bug 3968: Empty Blue Box Pop Up

- Removed warning, made budget amount a required field.
- Added conditional logic to prevent display of tooltip when there is no content
- Moved filter form into sidebar
- Changed Budgets.pm to pass an ID to a form field
- Improvements to breadcrumbs and title tags
- Restructured budgets admin toolbar to match existing toolbar patterns:
  "new," "edit," etc.