Fix a path relativity issue in Spring Insight

A previous commit [1] added support for the Spring Insight application
performance monitoring tool to the Tomcat container. This commit
contained an error where the installed location of Insight was
referenced with an absolute path instead of a relative path. This
causes applications bound to the Insight service to fail to start as
the path to Insight passed to the application at startup will be
incorrect.

[1] e0e90410aaed1b87d791ad031f1577409f90614a - Zero-touch support for
Spring Insight
Merge branch 'cgfrost-master'
AppDynamics Support

This change adds support for zero-touch usage of an bound AppDynamics
service.  The documentation for the component contains information on
how to bind the service to use this functionality.

[#52415605]
Merge 52415605-app-dynamics to master

[Completes #52415605]
Remove yard from the default build

Previously yard would be run for the default build (run during CI).
However the artifacts created are never persisted so it was a waste a
non-trivial of time.  The change keeps the API enforcement task in the
build, but removes the doc generation task.  To create the docs,
simply run `bundle exec rake yard`.
Use files downloaded during internet detection

This avoids the first file downloaded to determine internet
availability from being downloaded again unnecessarily.

[#57792554]