adds merged cells
Created originally on Bitbucket by aceMueller
change set attached is built on 424 from fork of same; test case included; adds a worksheet level call to merge cells (i.e., such that cells B5 through B9 are one big happy cell, popular for either creating column super headings, or when creating forms with different size and shapes of cells. Note that this change set includes at least one method which is adjacent to a new method in another change set sent which was built on 424; even if this causes the mercurial merge to note a conflict, obviously it matters not whether this method is above or below an adjacent method.
Attachments: addMergedCells