Upgrade to AppDynamics 3.8.+

A new version of AppDynamics is available and should be consumed in the Java
buildpack, this change does so.

[#74772312]
Merge branch 'cgfrost-master'

[resolves #68]
Upgrade New Relic to 3.8.+

A new version of New Relic is available and should be consumed in the Java
buildpack, this change does so.

[#74772414]
Merge branch 'cgfrost-master'

[resolves #69]
Update the Spring Insight documentation

The Java Buildpack requires Spring Insight version 2.0.0 or above in order to
function properly. This is not documented and this commit adds the version
requirement to the documentation.

[#74932796]
Merge branch 'cgfrost-Spring-Insight-Documentation'

[resolves #72]
Change the default Access Log pattern in Tomcat

From GitHub issue #57. The current access logging pattern isn't as useful as it
could be. The logs will often be viewed alongside with the Router logs and
should provide complementing information and not overlap with it.

[#74837854]
Merge branch 'cgfrost-master'

[resolves #71]
Remove space from AppDynamics Tier Name

At some point the AppDynamics agent stopped accepting tier names with
spaces in them.  This change led to our default choice of "Cloud
Foundry" no longer working.  This change updates the default tierName
to "CloudFoundry" which enable AppDynamics to work with defaults.

[#75250662][#73]
Merge 75250662-no-space-tier-name to master

[Completes #75250662]