TravisCI: Test with different HttpClient versions
Add test comment regarding issue #24
Fix .travis.yml mistake
Merge branch 'master' of github.com:richkadel/HTTP-Proxy-Servlet into richkadel-master
Simplify parameterized test to use common servlet runner, remote echo handler, web client.
Move testing of the Parameterized feature to a separate test class
Re-instate ProxyServlet prior to parameterization temporaryily
Introduced URITemplateProxyServlet subclass, and added hooks to ProxyServlet.
Rename test.
Bump HttpClient version to 4.3.4.  We still work with 4.1 though.