Update DOAP file with git repo, fixes some urls and add the 5.2 release
Update DOAP file with git repo, fixes some urls and add the 5.2 release

apache/jmeter,etnetera/jmeter,benbenw/jmeter,benbenw/jmeter,benbenw/jmeter,ham1/jmeter,benbenw/jmeter,ham1/jmeter,apache/jmeter,etnetera/jmeter,etnetera/jmeter,apache/jmeter,ham1/jmeter,ham1/jmeter,etnetera/jmeter,apache/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter