STORM-87 fail fast on ShellBolt exception
Replace NullPointerException with UnsupportedOperationException
Change exception type to IllegalArgumentException
STORM-87 code change accorrding to comments
1. log level change to error
2. use exit instead of halt to terminate jvm
Fix for STORM-417
Fix for STORM-417
Merge remote-tracking branch 'community/master' into STORM-417
Merge branch 'master' of https://github.com/apache/incubator-storm into STORM-87

Conflicts:
	storm-core/src/jvm/backtype/storm/task/ShellBolt.java
use log-error instead of log-message in exit-process!
Merge branch 'STORM-87' of https://github.com/xiaokang/incubator-storm into STORM-87

STORM-87: fail fast on ShellBolt exception
Added STORM-87 to Changelog
Merge branch 'STORM-417' of https://github.com/knusbaum/incubator-storm into STORM-417

STORM-417: Storm UI lost table sort style when tablesorter was updated
Added STORM-417 to changelog
Merge branch 'multilang-nullpointerexception-fix' of https://github.com/forter/incubator-storm into STORM-396

Conflicts:
	storm-core/src/jvm/backtype/storm/multilang/ShellMsg.java

STORM-396: Replace NullPointerException with IllegalArgumentExeption
Added STORM-396 to changelog