Review documentation of widget types and of content view related screens

• reorder some properties: "required" should be first, maybe with the commonly shared properties "translated" and "readonly"
• withdraw "immediate", "title"
• rename "Dir" "Direction"
• add tabindex for accessibility

on html: remove:

• "disable html init",
• number of columns/rows
• editor selector

on textarea: remove size

on secret, text and int, double: put first required, max length et size
on textarea: required, number of rows, columsn, maxlength, size

on date: requied first, pattern/format (view: use "format", edit: use "pattern"), showstime, locale: use a selector,

int widget: title "Integer"
double widget: title "Decimal Number"

multiple user suggestion: add required prop on edit

on vocabulary + multi vocab (edit) vocab, require, localise, display id and label, display obsolete, do not display default, sort criterion, style, style class

• use bigger text area widget for editing "advanced mode configuration": Larger, more rows and no horizontal scroll bar.
  expression such as
  # {layoutValue.currentLifeCycleState =='approved' && currentUser.model.user.company = 'Nuxeo'?'edit':'hidden'}

  should be easily readable.

• withdraw the widget "Rich text with mime-type" , for now
• I don't understand "Style" and "Style class" -> what should I put there?
• Validator -> can we have a default list here? cause I don't know what to type
• same for Lang, Access Key, Value change listener
• Timezone -> offer a list? it's easy to add and standard
• widget "List": what is "Diff" parameter? Same for required