Dropbox upload chunked fixed.
dropbox chunked uploader fixed.
Merge branch 'master' of https://github.com/webnotes/erpnext
dropbox and googledrive problems fixed
backup dropbox and googledrive problems fixed.
google drive redirect url fixed.
description added to 'Is Opening' and 'Aging Date' field
added description to sales_invoice.txt
contact us page problem fixed.
Permissions problem in invoice fixed.
Merge branch 'master' of https://github.com/webnotes/erpnext
Merge pull request #318 from akhileshdarjee/master

Permissions in Invoices fixed.