Updated QUnit and jQuery
Optimized polling by iterating only over the existing elements in the jobs array.
Introduced new configuration parameter "logHandlerClass"

Introduced new configuration parameter "logHandlerClass" which can be
used to specify an alternate LogHandler for the WAR and JVM
agent. Also, if the JVM agent is used programmatically, a LogHandler
instance can be provided during construction time.
Merge branch 'master' into 2.0

Conflicts:
	agent/core/src/main/java/org/jolokia/http/AgentServlet.java
	agent/jvm/src/main/java/org/jolokia/jvmagent/JolokiaHttpHandler.java
	agent/jvm/src/test/java/org/jolokia/jvmagent/JolokiaHttpHandlerTest.java
Fixed for last merge
Updated javascript libs in site.
Fixed some typos.
Increased version number.
Introduced the concept of a request interceptor.

The history tracking is the first implementation for this interceptor, which simply stores historical value in an MBean if given.
Added debug and error message to test in order to track down random failures.
Added request dispatcher test.
Added test for OsgiServiceFactory