Document tweak

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1556908 13f79535-47bb-0310-9956-ffa450edef68
Fixed style check violations (tabs)

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1557059 13f79535-47bb-0310-9956-ffa450edef68
Upon response completion HttpAsyncRequestExecutor to request output only if the underlying connection is still open

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1557060 13f79535-47bb-0310-9956-ffa450edef68
Updated NOTICE

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1557335 13f79535-47bb-0310-9956-ffa450edef68
Upgraded HttpCore trunk version to 4.4-alpha1-SNAPSHOT; minimal JRE requirement upgraded to 1.6

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1557337 13f79535-47bb-0310-9956-ffa450edef68
Moved deprecated classes; fixed some deprecation warnings
Added missing @Override annotations (Java 1.6)
Use String methods and constructors that require Charset instead of String