Add the Baseline/Version concept

[orenault]

All Nestor object should have a Version number.

Thus, you may have the ability to manage versions and restore a TC/TS/TP after a change or do a Baseline.

The Baseline concept applies for a TP/an Execution: The Baseline is the version number of a TP/an Execution.

=> In the execution report, you can list all TS/TC with each version number, thus you can know exactly what have been tested. If TS/TC are modified after an execution, without baseline/version, you can be sure what has been done. => if you want to re-execute a TP (after a code fix), you should have to ability to execute a TP for a specific baseline. The execution will present the versions for all TS/TC used for the Baseline.

[kinow]

+1 we have discussed that in a previous meeting. It is not clear how to implement it though. The simplest way is either have a 'versions' table for each versioned table (what sounds not quite right) or find some different model. I'm working with the latter option... probably it's the longest path, but I think if we can find a good way to avoid duplicating tables, that may help us in the future with plug-ins too.

[kinow]

80% done. The database model has been updated, specification seems to be working fine. Next steps are:

• Planning
• Execution

Once these two are completed I'll merge, close the issue and will move to the next issue.

[kinow]

Planning done. Now the last remaining item is using test case versions in the executions too.

[kinow]

Closing now and moving to next issues. See last commit for implementation details and other notes.