What is the best free test tracking software?
I'm not talking about bug tracking software (like Bugzilla or Jira). I'm looking for something that will let me:

 1. Store test specifications in text format
 2. Combine test specs into test coverage scenarios
 3. Keep track of the progress through testing scenarios 
 4. Link test specs with bug reports stored in Bugzilla
 5. Generate progress reports
What is the best free test tracking software?
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I'm not talking about bug tracking software (like Bugzilla or Jira). I'm looking for something that will let me:

 1. Store test specifications in text format
 2. Combine test specs into test coverage scenarios
 3. Keep track of the progress through testing scenarios 
 4. Link test specs with bug reports stored in Bugzilla
 5. Generate progress reports