Added TipViewController for showing tips.
Some minor UI tweaks to Doc Visits and Income form
Fixed setting tip text before the view is loaded.
Use counter view on number of people view
Start number people counter at 1
Make YesNo buttons remember selection
Wire up zip code and state selection to enrollee
Tap to select head of household
Change doctor visits text to use "frequently"
Added realistic looking prices per level
PlanDetailsView styling
Removed icons from plan detail left nav since we don't have final ones yet
Remove extra newline
Added cheat sheet
Added stub tips for all form views
Add stub detail image views for plan detail view
Add stub chatter feed names
Update live chat images & ui tweaks
More UI tweaks
Show Chatter feed with oldest at the top
Wire up InfoGraphic view