SP-533, BIS-336: disable hot-deployed plugin JAR file.

...ch/systemsx/cisd/openbis/generic/server/CommonServer.java

.../cisd/openbis/generic/server/HotDeploymentController.java

...cisd/openbis/generic/server/IHotDeploymentController.java

...sx/cisd/openbis/generic/server/business/bo/IScriptBO.java

...msx/cisd/openbis/generic/server/business/bo/ScriptBO.java

...ns/AbstractCommonPropertyBasedHotDeployPluginFactory.java

...y_plugins/ICommonPropertyBasedHotDeployPluginFactory.java

...ystemsx/cisd/openbis/generic/server/CommonServerTest.java

...x/cisd/openbis/generic/shared/AbstractServerTestCase.java