jobtrack 6.x-1.6-rc1

Primarily a brown-paper-bag release, so that the 'extra' field in the 'jobtrack_client' table is created on initial module installation.

The Client field in the ticket status bar is hidden if the user only has access to one client.

Also, replaced the 'only view own tickets' permission with 'view other users tickets' permission, and the 'hide ticket status bar' permission with 'view ticket status bar' permission. Per the INSTALL.txt:

Users with "view other users tickets" permissions can view all tickets for any client that they have "access CLIENT NAME tickets" permissions. Users that do not have this permission can only view tickets that they themselves have created. Users with "administer jobtrack", "edit any ticket" and/or "delete any ticket" permissions can always "view other users tickets" whether or not they are explicitly granted this permission.
NOTE: This permission is new and changes the default behavior found in JobTrack 1.5 and earlier where by default users could see all tickets for any client they had access to.

Users with "view ticket status bar" permissions will see the State, Priority, Client and Assigned select menus for tickets. Users with "administer jobtrack", "administer state", and/or "can assign tickets to other users" permissions can always "view ticket status bar" whether or not they are explicitly granted this permission.
NOTE: This permission is new and changes the default behavior found in JobTrack 1.5 and earlier where by default users could view the ticket status bar.

#455238: "only view own tickets" permission is a killer