[Buildbot] #3446: add tests configuration that uses persistent SQLite database

[Buildbot trac]

#3446: add tests configuration that uses persistent SQLite database
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Reporter:  rutsky     |      Owner:
    Type:  undecided  |     Status:  new
Priority:  major      |  Milestone:  0.9.+
 Version:  master     |   Keywords:
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 Looks like some tests are inproperly cleanup their state which is not
 visible when in-memory SQLite is used, but visible when run in this way:

 {{{
 BUILDBOT_TEST_DB_URL=sqlite:////tmp/test_db.sqlite trial buildbot.test
 }}}

 I propose to add meta-Buildbot and Travis tests configurations with
 persistent SQLite database (e.g.
 `BUILDBOT_TEST_DB_URL=sqlite:////tmp/test_db.sqlite`).

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Ticket URL: <http://trac.buildbot.net/ticket/3446>
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Buildbot: build/test automation