Improve usability of jboss-admin.sh for scripting environments

I want to be able to find out what deployments exist in a server in a
scripting environment. There are a couple of issues in the
jboss-admin.sh that prevent this from being done. The first is the dump
of the environment header:

=========================================================================

JBoss Admin Command-line Interface

JBOSS_HOME:
/home/git/JBossAS/jboss-as/build/target/jboss-7.0.0.Beta4-SNAPSHOT

JAVA:
/System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home/bin/java

JAVA_OPTS:

=========================================================================

1. I would like to add a q/-quiet option that disables the output of
this header. It would also suppress the "Connected..." and "Closed..."
msgs as all I want to see is the output of the command that is being
executed to simplify the script's parsing of the returned information.

2. The second is the handling of arguments with strings. The way the
launch of the org.jboss.as.cli module is done, arguments to the
jboss-admin.sh with quotes around spaces are incorrectly interpretted as
multiple arguments. For example, trying to list the deployments using:

[130](ironmaiden:bin) > ./jboss-admin.sh --connect command='ls deployment'
Connected to standalone controller at localhost:9999
extension path subsystem
deployment management-interfaces management
interface socket-binding-group
Closed connection to localhost:9999

produced just the result of an "ls" command without any arguments. The
reason is that the CommandLineMain.main saw 3 arguments instead of 2:

. The "$@" list of arguments
to the shell script needs to be hard quoted so that the eval command
properly expands the arguments. With this, the previous command now
produces the expected listing of the deployment node:

[131](ironmaiden:bin) > ./jboss-admin.sh --connect command='ls deployment'
Connected to standalone controller at localhost:9999
ROOT.war
Closed connection to localhost:9999

In these examples I have not yet suppressed the "Connected..." and
"Closed..." msgs coming from the CommandLineMain class.