refs #65 logical changes for generating delta report
refs #65 reduced duplication in expense report generation
refs #81 added vendor model
refs #81 added migration to add vendor id, and seed data for vendor
refs #81 added rake for vendor association
refs #81 added transporter_name method
refs #81 added updated schema file
refs #81 removed TRANSPORTERS form initalizers
refs #81 added association with vendor, paid & received model
Merge branch 'delta_report'
refs #65 some changes for auditing vendor in movements
refs #65 some changes for auitable fields movement model
refs #81 added migration to remove transporter_name field
refs #81 added migration to remove participants_name and modified test
cases
refs #81 modified schema
Merge branch 'issue_81'
Merge branch 'master' into payment

Conflicts:
	app/views/paid/new.html.haml
	app/views/received/new.html.haml
refs #68 some modifications for vendor association
refs #68 #69 added validations for paid, received model and modified
test cases