sdk/src/com/socialize/oauth/signpost/http/HttpParameters.java
public String put(String key, String value) {
        return put(key, value, false);
    }
public String put(String key, String value) {
        return put(key, value, false);
    }
Convenience method to add a single value for the parameter specified by
'key'.

@param key
the parameter name
@param value
the parameter value
@return the value