Add supplier discounts to purchasing data and change some code formatting
Cast the return number of the format function as a floatval
Code formatting changes
Add new scripts for selling through support
Dataase changes needed for sales through support scripts
Code formatting changes
Adapt purchase ordering for new supplier discount functionality
Addition to inventory manual
Change to allow any stock type to be used
Merge pull request #45 from fahadhatib/develop

Updates from webERP
Merge branch 'develop' of https://github.com/KwaMoja/KwaMoja into develop
Merge branch 'develop' into dbupgrade