add new panic() method, though not yet used. revert to java target if cannot find specified target
Add convenience methods for detecting missing targets. At a few bail out points so that we don't try anything that will need code generator if we get an improper target.
move templatesExist to Target
Merge pull request #650 from parrt/null-ptr-unknown-target

add new panic() method, though not yet used. revert to java target if ca...