Number editor

Hi Shane,

Please check code changes for number editor.
1. I was unable to write test cases for situation where user put wrong value in number editor and ENTER key press or Blur event happens (in these situation the value of cell reverts to old value).
2. I have added a couple of default parameters in style of editors (edit.less), this is to make sure that if the page is using some other styles also they should not interfere with style of our editor.