Readme update
Update read me
Cleanup
Add utility functions
Update Read Me
Add row that data starts at and cleanup
Update readme.md
Column auto lettering working. Code cleanup.
Fix a typo.
Add support for callback after the table is uploaded.
Start changes to allow a preload data modal
Adding a preload modal option
Add in preload data handling
Fill out the blank source column 'button' and cleanup
Update README.MD
Merge branch 'master' into develop

Conflicts:
	ExcelToTable.php
	View/modals/map.phtml
update