add cobertura plugin with xml format
Merge pull request #10 from mfremont/cobertura

add cobertura plugin with xml report format
Fixes DNSJavaTCPClientImplTest to run on Mac OS X
Adds patch method to OAuthSampler
Merge pull request #11 from mrerrormessage/master

Adds Patch HTTP method to OAuth Sampler
Add html format to cobertura