[release] datagrepper: 0.7.0

[Ralph Bean]

0.7.0
-----

Notably, the /topics endpoint (which never worked) has been removed in
this release. From some digging on db-datanommer02, it looks like it is the
reason for those crushing load spikes we've been getting.  I'll deploy this
change shortly.


Pull Requests

- (@ralphbean)      #166, Be more explicit with Content-Security-Policy.
  https://github.com/fedora-infra/datagrepper/pull/166
- (@ralphbean)      #167, Make the websocket configurable.
  https://github.com/fedora-infra/datagrepper/pull/167
- (@ralphbean)      #168, Remove /topics endpoint
  https://github.com/fedora-infra/datagrepper/pull/168
- (@ralphbean)      #169, Return JSON with tracebacks for internal server errors.
  https://github.com/fedora-infra/datagrepper/pull/169
- (@ralphbean)      #170, Truncate charts to make things prettier.
  https://github.com/fedora-infra/datagrepper/pull/170
- (@ralphbean)      #174, JSON, not Details.
  https://github.com/fedora-infra/datagrepper/pull/174
- (@pypingou)       #176, Raise a 405 error upon POST queries
  https://github.com/fedora-infra/datagrepper/pull/176

Commits

- 96e109bd9 Be more explicit with Content-Security-Policy.
  https://github.com/fedora-infra/datagrepper/commit/96e109bd9
- 41701ae80 Make the websocket configurable.
  https://github.com/fedora-infra/datagrepper/commit/41701ae80
- 5abbb8d40 Remove /topics endpoint
  https://github.com/fedora-infra/datagrepper/commit/5abbb8d40
- 0abb45e8f Return JSON with tracebacks for internal server errors.
  https://github.com/fedora-infra/datagrepper/commit/0abb45e8f
- 073e5493c Truncate charts to make things prettier.
  https://github.com/fedora-infra/datagrepper/commit/073e5493c
- df1ae1e69 JSON, not Details.
  https://github.com/fedora-infra/datagrepper/commit/df1ae1e69
- ccdac3445 Raise a 405 error upon POST queries
  https://github.com/fedora-infra/datagrepper/commit/ccdac3445