Docs are only in the checkout.
fix typo in history
Print notices on upgrades from pre-Engine too.
Add a notice for 0.6.0.
More History changes.
Merge branch 'devel' into release-0.6.0
pushing out 0.6.0-rc3
make cli-test.sh --global work again
allow TEST_RELEASE with --global
Fix contributing link in main README.
accounts tests: improve isolation.

The neverending story.
remove "fail" from the title of tests.

until we can run browser tests in a better system (eg seismograph), this is just
too distracting.
Clean up indices after tests, since Mongo collections have a limited number of indices.
Merge branch 'release-0.6.0' into devel