openisr.init: Load/unload loop module
openisr.init: Load/unload loop module

- Automatically load the loop module in "start" mode and unload it in "stop"
mode, since some distributions don't do this automatically.  Don't complain
if this fails (e.g. if the module is compiled into the kernel).

- Spin out the modprobe command into a procedure

- Remove execute bit from openisr.init.in (should have been removed when it
was renamed from openisr.init)

cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr