addWorksheet method implemented
Debugging Cell update functions
Merge branch 'master' of https://github.com/IngLnx/SpreadsheetScript
Merge remote-tracking branch 'upstream/master'

Conflicts:
	spreadsheetScript.py
Merge branch 'master' of https://github.com/IngLnx/SpreadsheetScript
Changed the main to accept username and password at command line