Avoiding unnecessary assignment.
Moving a bunch of || [] guards to an explicit Array check.
Fixing spelling.
Bumping the npm version.
Updating README

Fixes #46
Add the option to put CSS classes on labels
Add the option to put extra CSS classes on fields
Add a test for extra CSS classes on label/field
Use a cssClasses object to store label and field CSS classes
Update README
Remove useless property check
Use Array concat instead of pushing a joined array...
Merge pull request #47 from richardngn/master

Add options to add extra CSS classes
Refactoring `attrs` to be more general-purpose.
Using the new `attrs` everywhere.
Adding htmlEscape
Using htmlEscape
Merge branch 'attrs_html_escape' - fixes #50
Bumping the npm version.
Updating contributors section of the README