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 with develop