Add versions to plugins that we explicitly reference.

Move GPG signing into a profile so that it only runs when making a release.
Add a framework to run the standard Node benchmark scripts via JUnit
in Maven so that we can track results via CI.
Allow tests to run only on Java 6 even if we built on 7.
Fix "writable" and "readable" state in TLS sockets to prevent an
assertion error in HTTP code.
Add Jacoco test coverage for everything.
[maven-release-plugin] prepare release trireme-0.6.8
[maven-release-plugin] prepare for next development iteration
Add release notes.
Try to fix JaCoCo coverage for this module.
Change to propagate JaCoCo settings to tests spawned in "nodetests."
Ignore IDEA files
Avoid the service loader invocation within Charset.forName given that it doesn’t work well when the system class loader isn’t the one you need i.e. custom charsets are difficult to locate within container environments such as sbt, and probably servlets.
Sometimes IDEA creates an "idea_project" directory too.
Fix test script for new package name.
Update contributors.
Re-factor "trireme-evals" and "evals" into one internal module for handling
all script execution.

Automatically re-try scripts in interpreted mode if they are too small.
Implement Cipher and Decipher in crypto module for DES, Triple DES,
and AES.
TF for SSL ciphers when unlimited crypto policy is installed.
Look for other cases in which Rhino can't compile a script -- specifically,
an IllegalArgumentException -- and re-run the script in interpreted
mode in that case.
Make Javadoc and source plugins only run on a release.
Make coverage only run when "useCoverage" is true.