Merge tag '0.0.2' into dev

v0.0.2 release
 * adding classes helper
Allowing specific actions to be restricted to specific fieldsets

This allows `Form#input()` and `Form#serialize()` to be limited to a
specific `<fieldset>`. (also updates `dominicbarnes/form-serialize`
to `0.1.1` which drops the `loose` parameter)
pinning dependencies to semver ranges
version bump + changelog update
Merge branch 'release/0.1.0'