Small fixes to start_test
Small fixes to start_test

[reviewed by Greg]

- Fix bug to correctly generate spec tests
- Log some diagnostic output that was being left out of the logfiles
- Ignore SKIPIF when running --clean-only
- Add a couple of comments here and there



git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@21463 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

chizarlicious/chapel,sungeunchoi/chapel,hildeth/chapel,CoryMcCartan/chapel,hildeth/chapel,hildeth/chapel,hildeth/chapel,chizarlicious/chapel,chizarlicious/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,hildeth/chapel,CoryMcCartan/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,hildeth/chapel,chizarlicious/chapel,chizarlicious/chapel,chizarlicious/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,chizarlicious/chapel,sungeunchoi/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,hildeth/chapel