add camelCase aliases for public methods

 - switch to v2 titleCase implementation
 - remove default arg whitespace
add tests for camelCased aliases
add camelCase aliases to the docs

 - alias truncatenumber to boundedNumber
 - deprecated non-camelcase names
better spec
Merge pull request #31 from HubSpot/v.1.4/addCamelCaseAlias

add camelCase aliases for public methods