(cherry-picked from 383ab454725d9bf8d01392a587c8a2c0c2116294)
(Closes #2429)

[IMP] website.snippet: create automatically the thumbnail; data-option became data-js; add data-eval method; rename check_class into toggle_class

website.snippet: The methods described in javascript will be called automatically from the data-method_name = value on li snippets options. The methods are called in the order relative to children of xml (eg: <li data-method1=value1> ... <li data-method2=value2> ... </ li>, the method1 is then called method2). Methods receive two arguments: type (over, click, reset) and value. data-snippet-id-option becomes data-snippet-id. Several xml options can use the same data-snippet-id.

add a new gallery snippet

convert website_sale to the new option system

[IMP] website: create customize theme application and color-picker; Create theme_bootswatch and use less files.

Render the top-menu (backend menu or frontend editbar) server-side.
Use Fontawesome icons (mail, timezone, chat).
Refactor website widgets, split Website.editorBarin editorbar, ace, editorbar- content, editorbarCustomize.

bzr revid: chm@openerp.com-20140407112330-6cj02vlmcs9gwxst

bzr revid: chm@openerp.com-20140331101043-0mf3c6pndz133huy

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bzr revid: chm@openerp.com-20140305175411-in3oodk778dxvu0k

bzr revid: chm@openerp.com-20140303142017-jcb3401wpiuvbc1n

[FIX] website: editor: pointer-events:none for ie doesn't work (because ie). Change snippet overlay to fix this ie bug

bzr revid: chm@openerp.com-20140226175558-2gyix2zgdawf87yz

bzr revid: chm@openerp.com-20140218101017-f827kued494rfu9g

[FIX] website: snippet resizing; Users don't understand when they can drag arrows to resize col-md-XX. They try, it does not work, so they think the feature does not work. So, horizontal arrow on col-md-XX snippets should use an icon according to what you can do

bzr revid: chm@openerp.com-20140217100418-iwdrv36a4u2inasn

bzr revid: fp@tinyerp.com-20140208120151-l43xf7kamhmmxejr

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bzr revid: chm@openerp.com-20131016101055-p6vhiijvladtbn87

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