Bump ext/openssl to 0.9.1.
Wire up pkcs7 stub properly.
Bump jruby-openssl version(s) to 0.9.2.
Bump jruby-openssl default gem to 0.9.2.
Be less aggressive about interrupting fibers.

* Do not use java.lang.Thread.interrupt, since it reaches far.

* Do not interrupt root threads (no parent) since they are not
  true fibers and should not be managed by fiber logic.
Also bump DEPENDENT jruby-openssl versions. Sigh.
Make jruby-jars single source version from main maven pom.xml file. Remove second copy of jruby-jars source
Also bump DEPENDENT jruby-openssl versions. Sigh.
Sync up tha bits