Automatically set size to the dimensions of the replaced textarea

[alfonsoml]

If the instance is created replacing a textarea, try to make it match those dimensions by default. If the config has some dimensions set, then of course, use that, but if it's missing, then get the size of the textarea like requested in ​http://cksource.com/forums/viewtopic.php?f=11&t=17682

[j.swiderski]

If there is nothing set in CKEditor then it could use size of textarea based on rows and cols of textarea.

Editor width and height are empty by default but there are settings like resize_minWidth, resize_maxWidth, resize_minHeight, resize_maxHeight. It should be checked if they don't have any influence of initial editor dimensions.