Update some bug / enhancements titles to clarify
Update some bug / enhancements titles to clarify

git-svn-id: https://svn.apache.org/repos/asf/jmeter/trunk@1828627 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: 269261f3901bcd6f6fa5782a537fcda732509233
benbenw/jmeter,etnetera/jmeter,benbenw/jmeter,apache/jmeter,ham1/jmeter,etnetera/jmeter,apache/jmeter,benbenw/jmeter,ham1/jmeter,ham1/jmeter,etnetera/jmeter,apache/jmeter,etnetera/jmeter,apache/jmeter,ham1/jmeter,etnetera/jmeter,benbenw/jmeter,apache/jmeter,ham1/jmeter