Add field output folder to allow generation of Graphs/CSV outside of
jmeter/bin folder
Fix issue with Filter samples by success flag
Add changelogs
Merge branch 'Graphs_Gen_Improvements' of https://github.com/pmouawad/jmeter-plugins

Conflicts:
	extras/src/kg/apc/jmeter/listener/GraphsGeneratorListener.java
	extras/src/kg/apc/jmeter/listener/GraphsGeneratorListenerBeanInfo.java
	site/dat/wiki/Changelog.wiki