[BZ 1054360] RFE: let users run an AS7/EAP6 CLI script with an operation on
Standalone or Host Controller resources

Remove hard-coded timeout when waiting for jboss-cli process. Exposed
another 2 operation parameters to handle process timeout or killing it when
timeout occurs.
[BZ 1068789] - rhq scripts won't work in Ubuntu derived distributions - Using only shell commands from posix standard sub set, because on Debian based distros the /bin/sh points to Dash that had problems with the previous version.
[BZ 536287] - (RHQ-653) Agent "Get Info On All Plugins" operation does not return the short name of a plugin (and is inconsistent with the agent prompt) - Returning also the display name and the short name of plugin for both the retrieveAllPluginInfo and the retrievePluginInfo agent operations. Now it is more consistent with the prompt command for agent (plugins info) and the short plugin name can be used elsewhere.