in the same file as the im_invoices

  - Added import for financial documents/invoices

  This way it's possible to import tasks for a project

  Fixed undefined variables etc.

  - Fixed import of Project Manager field

  - project_lead parsing
  - customer_contact parsing

- Testing import with sample files

  - Created reasonable sample data
  - Added examples for Conf Item, Company and Projects
  - Added documentations on index.adp page
  - Fixed a number of issues for each of the object types

  Added some additional hard-coded mappings for im_project