Show examples of Mail with person prefixes, not Address

Clarifies some confusion in #158.
Remove "phone" as a Person attribute

If we already have cell_phone, home_phone, and work_phone, then an
additional attribute called "phone" doesn't make any sense.

Addresses #158
Put applicant sections headings outside the row div
Make applicant show indentation consistent
Remove blank stylesheets
Make the applicant page prettier with bootstrap panels
Merge remote-tracking branch 'origin/master'

* origin/master:
  Remove "phone" as a Person attribute
Add section navigation tabs that don't do anything, yet

For #159.
Mark section tabs as active for the current section
Use the household_member route for editing household members, not the people route
Add dropdowns and working links to the section tabs

Fixes #159.
Describe income amounts as yearly

Fixes #160.
Fix household member tab selection

It was using the Person ID to select the HouseholdMember, which worked
for 2 out of 3 HouseholdMembers by coincidence.
Add non-functional pager buttons and remove back button
Break residence edit screen into columns
Break employment form into columns
Move incomes flash error display to edit.html
Fix edit HouseholdMember links on applicant show page
Extract breadcrumb partial
Use model to_s in tab dropdown descriptions