Make getSelection()['start'] the default value for [Number Start]

[tomsommer]

It would be nice if the Start argument in insertText() and related functions was optional and defaulted to .getSelection()['start']

So one would not have to do

$('#foo').insertText('Bar', $('#foo').getSelection()['start']);

but simply

$('#foo').insertText('Bar');

to insert at current caret position.