Views FTW

This is the 7.x-1.x port

Issue #847846 by mansspams, marvil07, jaydub, monotaga: Provide 'Reset your vote' link on the widget.

This is a 7.x-1.x port of the original 6.x-3.x patch at #847846-25

Several changes was done in order to have D7 compatibility, but it's also
focused on vud and vud_field, trying to follow #1360572.

Chris Pliakas authored Apr 17, 2011 and Marco Villegas committed Feb 10, 2012

This is a backport of the original patch on #877392-18

The main difference here is that I am applying changes only on vud
module because of the plan(see #1360572).
The othe minor difference is about re-naming some variables to make it
D7-friendly.

Now for voting tag.

We do not really need it for now.

Actually implement hook_field_widget_info() and hook_field_widget_form() from vud_field module and not using vud namespace.

This also fix some problems with the field:

- Actually implement correctly hook_field_load.

This field relies on core field system to create a field which adds a
Vote Up/Down voting widget to the any entity.

This solves the per content type, per content configuration, storing
widget value on the field value. Maybe we can add more information there
in the future, but this is the start.