TIMOB-12620 Added setter for TableView.sections property per documentation

[arthurevans]

Also updated documentation with corrected since date and a few typo fixes.

[pingwang2011]

Should be
for (Object section: data)

[arthurevans]

Updated. The sections setter now returns without changing the table if any of the objects in the array are not sections (for example, sections = [ row ]).

This checking does not take place when you set sections in the construction dict, which seems consistent with the way we handle "data" in the construction dict. If you think we should reject non-sections in the construction dict as well, I think we could do something like this:

    if (dict.containsKey(TiC.PROPERTY_SECTIONS)) {
      Object o = dict.get(TiC.PROPERTY_SECTIONS);
      if (o != null && o instanceof Object[]) {
        Object[] sections = (Object[]) o;
        boolean validSections = true;
        for (Object section : sections) {
          if (! (section instanceof TableViewSectionProxy)) {
            Log.e(TAG, "Unable to set sections. Invalid type for section: " + section);
            validSections == false;
            break;
          }
        }
        if (validSections) {
          data = (Object[]) o;
        }
        dict.remove(TiC.PROPERTY_SECTIONS); // don't override our data accessor
      }
    }

[pingwang2011]

The style is not right here. Should use tab instead of whitespace.

[pingwang2011]

Code reviewed and functionally tested. Looks good. Only one minor comment.

[arthurevans]

Updated. Please review.

[pingwang2011]

Accepted