Added ability to run createEjbStubs for input/update JAR files

This request adds the ability to use the plugin to generate EJB stubs for JAR files, but retains the ability to create EJB stubs for individual classes as it does today. These changes were tested against WAS 7.0 and are working well.

There are two new configuration parameters:
* **inputFile** is used to provide the input JAR file. 
* **updateFile** is optional, so that a user can provide the JAR file to be updated.

If inputFile is provided, the plugin will generate EJB stubs for that JAR. If inputFile is not provided, but classes are provided the plugin will generate EJB stubs for each class. Otherwise an error is thrown.

Since this is new functionality, this request includes a bump in the minor version number.