Fix: Inserting rows/cols didn't shift cell meta data

*Removing* rows and columns works just fine, but inserting new ones makes meta data lose track of their cells - the meta data isn't shifted along with the cell values.

Try the following JSFiddle: http://jsfiddle.net/zq5fzegx/1/

1. Notice that the "#" cell is green and centered.
2. Now remove the "Kia" column and the "2008" row.
    * The "#" is still green and centered as one would expect.
3. Insert a new row and a new column where the old ones were removed in step 2 (insert row above "2009" and insert column to the left of "Nissan").
    * Now, the number 11 is green and centered instead.