Update the Tomcat Access Log Pattern

Due to a change in the Access Logging produced by the GoRouter the
'X-Forwarded-For' header is no longer required. The commit removes it.

See: https://github.com/cloudfoundry/java-buildpack/issues/75#issuecomment-53535349

[#77701034]
Merge branch 'cgfrost-77701034-Access-Logs-Headers'

[resolves #75]
HTTPS Repository

Previously, the default repository root pointed at the HTTP endpoint
of download.run.pivotal.io.  This was due to the fact that the HTTPS
certificate (provided by CloudFront) did not match the URI.  The
CloudFront distribution has now been updated with a matching HTTPS
certificate, so this change updates the root to point at the HTTPS
endpoint.

[#77446526]
Merge 77446526-https to master

[#77446526]