Automatic detection of O(1) scheduler in latest kdb

[Nicholas Wourms <nwourms@xxxxxxxxxxxxx>]

According to the ChangLog, the kdb code now has automatic 
recognition support for the O(1) scheduler.  However, in 
kdb_bt.c, there is an ungaurded "init_tasks".  This causes 
problems for users of O(1), because the scheduler removes 
init_tasks in favor of something else.  Just thought I'd 
report this.
Cheers,
Nicholas