First round of redirects

Developer guides, chosen because they were viewed.
Typo
More redirects
Logging and dotnet

* Added Apache Combined log so we can see referrers
* Redirected the .net page
Fix GraphAcademy redirect
More urls to migrate
Redirect training to neo4j.com
Ask search engines not to index www.neo4j.org
Ask search engines not to index www.neo4j.org
Redirect learn_graphdb
More urls migrated over
Emergency fix
Revert "More urls migrated over"

This reverts commit d5c764341ee67de60c3a446f06bc004b960e4385.
I dinnae ken