Updates to providers page

[roji]

• Update Oracle MySQL provider to 3.1 and bring up in the list
• Update Oracle provider to 3.1 (specify beta) and bring up in the list
• Update Devart providers from 3.0 to 3.1

[JeremyLikness]

Should the "docs" words in the "useful links" column for the first 4 rows be removed because they aren't linking to anything? Those cells should probably be blank, no?

[roji]

@JeremyLikness you're referring to the doc links for our providers, right (e.g. SQL Server)? If so, I think we recently agreed to put/move some provider-specific info there, so these pages should hopefully become more useful. We should probably beef those pages up regardless - we should probably add basic connection string/getting started examples for Sqlite, and a small section on Sqlite limitations compared to other databases...

[JeremyLikness]

@roji it was my mistake. In the preview view the first four rows show "docs" without an active link, but I see they are using a directive that will get updated when the page is built. So, to amend my review comments: approved, no changes necessary. Nothing to see here, please move along.