Bump version number to 3.0.10.
Change Nginx download URL to nginx.org.
Don't forget to bump version in Constants.h too.
Update NEWS and bump version to 3.0.6.
Add release notes for 3.0.4.
Add support for Union Station filters and fix some concurrency proble…
…ms and bugs in the analytics logging code while we're at it.
Bump version to 3.0.2.