Make the build more IDEA friendly.  IDEA tends to wipe the target/classes on not re-run plugins to re-generate the associated resources on a rebuild.  

* Adjust the maven-bundle-plugin and maven-scr-plugin to generate resources to a different directory from target/classes.
* Don't automatically generate SCR accessors since IDEA's compile wont be doing that.
Makes it easier to to run the embedded smoke tests from an IDE by automatically setting the needed System properties.