style-check should use source encoding

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/project/trunk@1493773 13f79535-47bb-0310-9956-ffa450edef68
Reverted stylecheck plugin to version 2.9.1 due to MCHECKSTYLE-193

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/project/trunk@1494064 13f79535-47bb-0310-9956-ffa450edef68