Clarify some docs Reorganize Fix wrong title for Proxy 
Clarify some docs
Reorganize
Fix wrong title for Proxy 

git-svn-id: https://svn.apache.org/repos/asf/jmeter/trunk@1662839 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: b669798138f5d09bf91c539a6f5e021e71cf8f02
ham1/jmeter,etnetera/jmeter,apache/jmeter,ham1/jmeter,etnetera/jmeter,benbenw/jmeter,ham1/jmeter,apache/jmeter,benbenw/jmeter,etnetera/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter,apache/jmeter,benbenw/jmeter,benbenw/jmeter