#8724 Add quick table feature

http://dev.ckeditor.com/ticket/8724

![qucktable](https://cloud.githubusercontent.com/assets/1527097/2637927/7b49b196-bea4-11e3-9bd5-230fd87d8d83.png)

Issues:
* Currently the whole table (that in dropdown panel) is focusable. Should each table cell be focusable?
* Currently "more..." button uses `cke_colormore` class. Selected cells have inline background style.
* Localization
* Default values: maxrows/maxcolumns, table attributes and style. Currently table has `border=1` and `width:100%`