Implement new "Actions" widget

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Action widget
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• Replace all the actions across by "Actions" widget.
• Action widget will be just "more" link and then on clicking slide down more actions.
• By default we will show 2 most used action + Actions links if there are more than 3 actions in a selector

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Context Menu
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• For contact search selector implement context Menu (jQuery plugin)
• Add all most commonly used actions to context Menu
• Context menu should respect permissions. For eg: show component specific link only if component is enabled.

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Add Classes to Action Lists
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Define an action "reference" value for each action:
view-contact
edit-contact
new-contribution
new-participant
new-activity
new-pledge
new-membership
new-email
group-add-contact
tag-contact

For the context menu, this is passed in the array and the template writes it out as a class attribute for each <li>:
<li class="{$item.ref}">

For the "links" pop-up list - we will still pass this into the template as an html blob for now (too big a change to pass array to template) - but include the classes in the <li> tags. (Developers who want to hide or modify this pop-up list will need to use css declarations on the class(es) ).

---------- Original post ------------------------------
patch for easier styling of civicrm action list