Add paniced bit (and date) to experiments table. Records that panic

button pressed, and when.

sql/database-create.sql

@@ -366,6 +366,8 @@ CREATE TABLE experiments (
   elab_in_elab tinyint(1) NOT NULL default '0',
   elabinelab_eid varchar(32) default NULL,
   security_level tinyint(1) NOT NULL default '0',
+  paniced tinyint(1) NOT NULL default '0',
+  panic_date datetime default NULL,
   PRIMARY KEY  (eid,pid),
   KEY idx (idx),
   KEY batchmode (batchmode)

sql/database-migrate.txt

@@ -2202,3 +2202,9 @@ last_net_act,last_cpu_act,last_ext_act);
 
        alter table users add column usr_w_pswd tinytext after usr_pswd;
 
+1.292: Add "paniced" bit to experiments table.
+
+	alter table experiments add paniced tinyint(1) NOT NULL \
+            default '0' after security_level;
+	alter table experiments add panic_date datetime default NULL \
+            after paniced;