KLBACKLOG-2267: fixed classloader issue with jetty / jetty-maven-plugin
KLBACKLOG-2267: git cherry-pick fbe9303 -m 1
KLBACKLOG-2267: library updates
KLBACKLOG-2267: build with jenkins
KLBACKLOG-2267: log sessionIdManager + calling super.invalidate to get stats right?
KLBACKLOG-2267: simple connection pool test
KLBACKLOG-2267: support for poolSize
KLBACKLOG-2267: more session tests from jetty
KLBACKLOG-2267: added cache for sessions to get HttpSessionEvent on session timeout
KLBACKLOG-2267: log info
KLBACKLOG-2267: if delete fails, check if already removed
merge jetty8
Merge branch 'master' into devel

* master: (30 commits)
  Disable BuildHive
  README: the `SessionFactory` should be instantiated because it has not been there
  check for mutable values in complete(), not just when an attribute is explicitly re-set
  revise fix for #16 to detect changes to mutable attribute values
  fixes #16
  [maven-release-plugin] prepare for next development iteration
  [maven-release-plugin] prepare release jetty-nosql-memcached-parent-0.4.0
  update change log
  replace ${project.version} by immediate values they should not be evaluated in child projects.
  log {session,client} factory on start up of the Session(Id)?Manager
  "shaded" some dependencies of kryo to avoid "java.lang.IncompatibleClassChangeError: Implementing class"
  use ByteArrayOutputStream during serialization to remove embeded value of initialBufferSize
  update change log
  update SpyMemcached (2.8.10 -> 2.8.12)
  update XMemcached (1.3.9 -> 1.4.1)
  expandtab
  update XStream (1.4.1 -> 1.4.4)
  set Kryo's maxBufferSize as unlimited (-1)
  expandtab
  update kryo (1.04 -> 2.21). this breaks tests for kryo.
  ...

Conflicts:
	jetty-nosql-kvs/pom.xml
	jetty-nosql-kvs/src/main/java/org/eclipse/jetty/nosql/kvs/KeyValueStoreSessionIdManager.java
	jetty-nosql-kvs/src/main/java/org/eclipse/jetty/nosql/kvs/KeyValueStoreSessionManager.java
	jetty-nosql-memcached/pom.xml
	pom.xml
	tests/pom.xml
	tests/test-memcached-sessions/pom.xml
Fixing merge conflicts
KLBACKLOG-2013 Updated jetty and xstream versions
KLBACKLOG updated distributionManagement
KLBACKLOG-2942 Reserve the session id with an empty dummy session
KLBACKLOG-2942 Update spymemcached
KLBACKLOG-2942 Sort serverstring
KLBACKLOG-2942 failOnError => false