Default Activity Filters

Some civi sites do not want to see all activities by default when looking at a contact record. An example would be where the civi site sends lots of bulk emails, and it becomes hard to distinguish the noise from the rest of the activities.

Our patch allows an administrator to choose which activities do and do not get displayed on the contact's activity tab. A user could override it by simply using the filter to select the otherwise hidden activity type. If the user changes back to the "all activities" option, it reverts to the system-wide filter.