misc fixes guarding against nulls and bash weirdness
sudo/bash changed again to pipe output to bash, fixing other problems
bump jclouds version to brooklyn ea5
fix issue reloading brooklyn.properties for some startup conditions
fix bug where regionName would be ignored for some purposes, and where it would be used as the endpoint for GCE
fix issue where postgres user couldn't see files under inaccessible ~brooklyn_user
another postgres fix - can't always put into dir belonging to different user
Merge pull request #1293 from ahgittin/misc

misc fixes guarding against nulls and bash weirdness