Merge pull request #12 from timschofield/develop

Phil: Replace all instances of $theme with $Theme
Merge pull request #13 from timschofield/develop

Updates from webERP
Merge pull request #14 from timschofield/develop

Remove remaining references to webERP
New manual pages for supplier tendering
Fix bugs in tendering
Fix bug in allowed modules. Ensure that no modules are allowed in supplier only logins
Merge pull request #16 from fahadhatib/develop

Manual for supplier tendering.
Merge pull request #15 from timschofield/develop

Date format, string changes, and variable names.