Refactor RPCClient to remove deprecated httpclient

[Desrever Nu]

/Users/advanced/Dropbox/NuNet/dev/nubot/NuBot/src/com/nubits/nubot/RPC/NuRPCClient.java:36: warning: [deprecation] DefaultHttpClient in org.apache.http.impl.client has been deprecated
import org.apache.http.impl.client.DefaultHttpClient;
/Users/advanced/Dropbox/NuNet/dev/nubot/NuBot/src/com/nubits/nubot/RPC/NuRPCClient.java:267: warning: [deprecation] DefaultHttpClient in org.apache.http.impl.client has been deprecated
        DefaultHttpClient httpclient = new DefaultHttpClient();
/Users/advanced/Dropbox/NuNet/dev/nubot/NuBot/src/com/nubits/nubot/RPC/NuRPCClient.java:267: warning: [deprecation] DefaultHttpClient in org.apache.http.impl.client has been deprecated
        DefaultHttpClient httpclient = new DefaultHttpClient();

[Desrever Nu]

Removing milestone: 0.1.6 (automated comment)