[hotfix] Supplier read permission for Purchase User

[Fix] Issue #448

[Fix] Issue #448 2
minor fix in sales invoice test records
[fix] issue 448 final
Merge branch 'develop' of https://github.com/frappe/erpnext into fix-issue-448
[fix] issue 448 final 1
Merge branch 'develop' of https://github.com/frappe/erpnext into fix-issue-448
[Cosmetics] Print Templates Layout Improved
[minor] send translations in response
HR - Leave Approver and Expense Approver fields changed to Link Fields, better default permissions
Merge pull request #2115 from anandpdoshi/user-permission-doctypes

HR permissions, translations
[print-template] Credit Note
[print-template] Credit Note Issue #31 1
[fix] get future vouchers query

[print-template] Credit Note Issue #31 2
Refactored Credit Note Print Format
Merge pull request #2114 from neilLasrado/credit-note-feature

[print-template] Credit Note Issue #31
Merge pull request #2120 from nabinhait/hotfix

Fixes in BOM and maintenance schedule
Merge pull request #2108 from neilLasrado/fix-issue-448

[Fix] Issue #448
Merge branch 'develop' of https://github.com/frappe/erpnext into print-templates-fix
[fix] Maintenance Scheduler periodicity validation
[fix] get incoming rate