Modifies init script to add start/reload hooks
Modifies init script to add start/reload hooks

Allows operator to execute an external script that must exit cleanly
before allowing start/reload to continue

vmamidi/trafficserver,SolidWallOfCode/trafficserver,chitianhao/trafficserver,bryancall/trafficserver,duke8253/trafficserver,pbchou/trafficserver,davidbz/trafficserver,chitianhao/trafficserver,vmamidi/trafficserver,davidbz/trafficserver,vmamidi/trafficserver,chitianhao/trafficserver,dyrock/trafficserver,duke8253/trafficserver,pbchou/trafficserver,pbchou/trafficserver,chitianhao/trafficserver,SolidWallOfCode/trafficserver,SolidWallOfCode/trafficserver,SolidWallOfCode/trafficserver,dyrock/trafficserver,SolidWallOfCode/trafficserver,dyrock/trafficserver,dyrock/trafficserver,davidbz/trafficserver,vmamidi/trafficserver,chitianhao/trafficserver,davidbz/trafficserver,pbchou/trafficserver,pbchou/trafficserver,dyrock/trafficserver,vmamidi/trafficserver,duke8253/trafficserver,chitianhao/trafficserver,duke8253/trafficserver,SolidWallOfCode/trafficserver,dyrock/trafficserver,davidbz/trafficserver,vmamidi/trafficserver,bryancall/trafficserver,duke8253/trafficserver,bryancall/trafficserver,SolidWallOfCode/trafficserver,dyrock/trafficserver,pbchou/trafficserver,bryancall/trafficserver,bryancall/trafficserver,duke8253/trafficserver,bryancall/trafficserver,chitianhao/trafficserver,duke8253/trafficserver,davidbz/trafficserver