update tests
update index.js to fulfil new tests
create test to check length of returned array
update index.js to push values to array
add details for using object as second argument
add filter function description to options table
add test and script for returning a filtered array
update options table
add some comments
update version number
add test for returning string values only
update to use type filter
resolve conflict
fix missing semi-colon
refactor 2nd parameter type check
add test for type filter: number
remove option to return values in an array
update type filter key option to 'valueType'
Merge pull request #2 from JonathanPrince/options_object

add options object for builtin value type filter