Removes problematic code from FileChooserView#init.
Removes legacy FileFieldView, which is badly broken under SCv1.10 due to RunLoop misuse.
Adds stub FileFieldView with developer warning.
Adds functional reset method to FileChooser et al.
Merge pull request #12 from dcporter/chooser-reset

Adds functional reset method to FileChooser et al.
Merge pull request #11 from dcporter/file-field-remove

Removes the broken & deprecated file field view. Consolidates legacy CSS & removes legacy folders
Merge pull request #10 from dcporter/file-chooser-init

Removes problematic code from FileChooserView#init.