Omit the `div.form-actions` tag from inline forms.

[thruflo]

To render an inline-form, it's current possible to pass in:

• bootstrap_form_style=form-inline to the form constructor
• category=structural / inline=True to your widget constructor(s)

However, it's not currently possible to pass in a kwarg to stop rendering the div.form-actions container around your buttons, as per the markup recommended by the bootstrap "Inline Form" docs: http://twitter.github.com/bootstrap/base-css.html#forms

This patch fixes the issue by tal:omit-taging the div.form-actions element if field.bootstrap_form_style == 'form-inline'.

[dnouri]

Thanks