can we agree to put more white space into our code?

I follow there rules for specs:

- 1 blank line between sections of nontrivial it block
- 2 blank lines between it blocks
- 2 blank lines between describe blocks
- 2 blank lines between beforeEach and afterEach
- no blank line between describe and the first child it
- no blank lines between two or more closing }); lines

tests cover:
- creating comment tags from a string
- creating script tag from a string
- wrapping document fragment

this is needed to be compatible with jqQuery 1.5.1

our original implementation doesn't work with
document fragments on IE

- tests were added to cover missing cases

- unless we are repeating OPTION elements, buffer new nodes in document
  fragment and append them to the DOM in one go at the end
- for OPTION elements we have to keep on using the old way
  because of how option widget communicates with select widget
  this should be change, but that change is out of scope of this CL
- modify jqLite to support wrapping of document fragments
- fix jqLite documentation typo

This change unintentionally avoids the following webkit bug that
that affects repeater growth:
https://bugs.webkit.org/show_bug.cgi?id=57059

However the following bug affecting shrining of repeaters is still
unresolved https://bugs.webkit.org/show_bug.cgi?id=57061