Allow ios-sim to handle multiple versions of Xcode

I get the following error when running a HMT project in an iOS simulator on JBDS 7.1.1 GA:

dyld: Library not loaded: @rpath/iPhoneSimulatorRemoteClient.framework/Versions/A/iPhoneSimulatorRemoteClient
  Referenced from: /Applications/jbdevstudio7.1.1.GA/studio/configuration/org.eclipse.osgi/bundles/923/data//ios-sim
  Reason: image not found

Xcode 5.1.1 is default (Mac OS X Mavericks) and was installed into /Applications/Xcode.app/. Xcode 5.0.2 was installed into /Applications/Xcode 2.app/ and was selected as the default version through xcodeselect. But the error was still reported.

This is because the ios-sim binary is linked against the /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Library/PrivateFrameworks directory, as seen in output of otool -l /Applications/jbdevstudio7.1.1.GA/studio/configuration/org.eclipse.osgi/bundles/923/data/ios-sim:

...
Load command 17
          cmd LC_RPATH
      cmdsize 128
         path /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Library/PrivateFrameworks (offset 12)
Load command 18
          cmd LC_RPATH
      cmdsize 80
         path /Applications/Xcode.app/Contents/Developer/../OtherFrameworks (offset 12)
...

Implying that Xcode must be installed into the /Applications/Xcode.app directory and not any other, which prevents xcodeselect from being completely useful to 'fix' the desired version of Xcode to use.

The requirement is to not have this limitation of having the selected version of code installed into /Applications/Xcode.app.

One way to workaround this limitation currently is to export the project as an Xcode project and then work on it in an older Xcode project.