Add .swp to gitignore
Fix bug with initializing buttonlist with empty buttons
Create population-by-age tool and population-bar-chart component
Add mock population data which stores age_group
Fix bug. prevent grabs "html.swp"
Add selection of year to population chart. Show current year, selected year
Merge remote-tracking branch 'upstream/develop' into develop
Change common variable names
Fixed naming conventions for all tools
Change naming conventions in base classes
Fix naming conventions for buttonlist
Fix layout.js adding wrong class names
Fix convention for line chart
Fix variable names in buttonlist and convention in header
Bar chart naming convention fix
Fix Bubble chart naming conventions
Example Table naming convention
Remove population by age from main repo
Merge branch 'feature/styles-naming-convention' into develop

Naming convention for classes (prefixed with vzb). This closes #7 and also closes #8
Merge branch 'develop' into feature/pop-slider
Init changes to current timeslider to respect naming conventions