began work on cell ranges and ability to merge cells
fixed column reference issue
fixed some bugs on applying styles to cell ranges
began work on more useful example
began work on allowing for single change to format of cell or cellrange.
updated sample.js with more useful samples
fixed bug that would cause issue if row height were set after a cell in the row was populated
finished ability to format cells and ranges directly
updated change log
updated package description
updated README
updated sample to check if it were being run from within module
Merge branch 'dev'

Conflicts:
	changelog.txt
	lib/Row.js
	package.json
	sample.js