Replaced BEST_MATCH with DEFAULT policy

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1620939 13f79535-47bb-0310-9956-ffa450edef68
Deprecated browser compat policy in favor of the default (best match) policy

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1620940 13f79535-47bb-0310-9956-ffa450edef68
Refactored public suffix list parser; deprecated old implementation

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1620941 13f79535-47bb-0310-9956-ffa450edef68
Deprecated internal punycode implementation in favor of standard java.net.IDN

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1620942 13f79535-47bb-0310-9956-ffa450edef68
Factored Public Suffix matching code into a separate utility class
Deprecated old non-thread safe public suffix domain filter in favor of new thread safe implementation