fixes #6784 character encoding conversion during export
fixes #4855 add date filters to case search
fixes #6381 inline address delete
fixes #6648 export csv from changelog report
refs #6698 initial set of commits for mailing tab work
refs #6648 add fields to log report export
refs #6698 move System.php mods to core
refs #6698 mailings tab
Made executable.
First attempt (but heavily tested) at a PHP login verification based on groups.  This was necessary to restore functionality that was lost when we moved from Drupal6 to Drupal7.
Changed ldap.groups to ldap.logingroups and ldap.logingroups.global.
disableLogging - change how we drop triggers
rename log-related scripts; add update schema script
minor fixes for log scripts
minor tweak to mailing tab ui
refs #6765 correct redirection page perms after delete mailing
refs #6798 set logging report perms
fixes #6799 build mailing report menu links