- replaces ad_export_vars with export_vars

- Added workflow updates in order to eliminate
  "modify" as the first transition in a WF

  New parameter "TreatCustomerMembersAsSLAMembersP"
  that checks if customer's contacts can see access
  all SLAs of the customer

  SLA Accessability is not controlled by view_projects_all anymore.
  Instead, the criterium includes membership of the SLA or
  membership of the SLA's customer with the parameter
  TreatCustomerMembersAsSLAMembersP

  - Hidden the "Help" toggle button

  Fixed order_by_clause logic, so that order_by_clause
  configurations in the im_view_column overwrite the
  default order_by_clause

  Now showing only categories of open tickets

  Added an update of the im_project.project_status_id field
  when updating a ticket status via the "Edit" function

  - Modified the two aging diagrams
  - Delayed chart display in order to improve
    page performance

  Moved portlets into a separate create-file
  so they can be executed/debugged separately

  Changed structure to use StoreCoordinator

  - Fixed display of widgets in non-SLA projects
  - Improved upgrade script

  Removed "Cancel" button from TicketNewPage:
  Cancel showed inconsistent return_url behavior,
  it can't go back easily, so it's probably the
  cleanest solution to remove it entirely.

  - Changed layout
  - Changed sizing

  Showing now statistics per department

  Added a default -limit 10

  Added parameters to ticket aging and number widgets

  Working on aging histogram

  Improved Ticket Age & Queue adding clickable bars.

  Added "null" conditions for ticket_queue_id and ticket_dept_id

  Ticket-by-customer-dept

  - Now skips "configuring" the widget until it has been rendered
  - Added "boxready" even to configure the widget after it has
    been rendered for the first time.

  - Now with persistent state
  - Moved currentUserId() function from PreferenceStateProvider to Utilities

  Added a 2nd option to show departments or queues

  - Now show/hide of legend
  - Toggeling between age/number of tickets works

  Now allows to choose number vs. age

  Added new ticket number per queue widget

  First results showing

  Fixed "Mark as resolve" issue with empty customer_contact_id

  Fixed ticket permissions - members of the SLA or the customer
  can now read all tickets below

  Fixed tricky permission issue in im_ticket_permission_read_sql
  that granted members of one ticket the right to see all tickets
  in the system

  Optimized performance for large number of tickets

  Added custom SQL selectors from index.tcl page to new.tcl page

  Fixed customer_contact_id_ajax

  Calculating the list of customer contacts
  based on SLA and customer members including
  now groups