layouts: persp-mode changed variable to enable ido-hooks
layouts: persp-mode changed variable to enable ido-hooks

Since persp-mode 2.5 the way to enable ido hooks changed again. Without
tihs, SPC b b lists all buffers instead of persp-local ones.

tsonntag/dotemacs,tsonntag/dotemacs,tsonntag/dotemacs,tsonntag/dotemacs