Make allowCoreThreadTimeout name consistent across mbeans and properties

4.3.1-fuse-01-09

Currently different names are used for properties and different in mbean display (and both differs from what is on the thread pool executor)
org.apache.servicemix.nmr.osgi.ExecutorConfigurator has allowCoreThreadsTimeout (with 's' and small 'o') and this is the name of the property that should be used in config file for it to work (ExecutorConfig in smx-utils has allowCoreThreadsTimeout too).

Then ExecutorFactoryImpl uses it to populate allowCoreThreadTimeOut property of thread pool executor (no 's', big 'O')

if (config.isAllowCoreThreadsTimeout()) {

            try {

                Method mth = service.getClass().getMethod("allowCoreThreadTimeOut", new Class[]{boolean.class});

                mth.invoke(service, new Object[]{Boolean.TRUE});

            }

and then ManagedExecutor exposes this property as allowsCoreThreadTimeOut (no 's', small 'o')

public boolean isAllowCoreThreadTimeout() {

        if (this.internalExecutor != null) {

            ThreadPoolExecutor executor = this.internalExecutor.getThreadPoolExecutor();

            try {

                Method m = ThreadPoolExecutor.class.getMethod("allowsCoreThreadTimeOut", null);

                try {

                    return (Boolean) m.invoke(executor, null);

                } catch (Exception ex) {

So three versions of the name of the same property. Probably all should be changed to the one used on ThreadPoolExecutor