Use camel-case for method names (example: urldecode -> urlDecode).

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1489240 13f79535-47bb-0310-9956-ffa450edef68
Match this kind of param name to the other methods in this class (encoding -> charset).

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1489242 13f79535-47bb-0310-9956-ffa450edef68
Javadoc: TLA should be upper-case.

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1489243 13f79535-47bb-0310-9956-ffa450edef68