change network client to HttpURLConnection

[crised]

Still there are org.apache.http libraries, in RawResponse.

Maybe we should use HttpURLConnection instead of Apache Http.

Asked the book author if it's a good idea, maybe it's not, to replace with HttpUrlConnection:
https://github.com/bmeike/ProgrammingAndroid2Examples/tree/master/FinchFramework/src/com/finchframework/finch/rest

According to this:
For Gingerbread and better, HttpURLConnection is the best choice. Its simple API and small size makes it great fit for Android.

http://android-developers.blogspot.com/2011/09/androids-http-clients.html

It seems that the best is Google Volley, but it might be to imature to use it:
https://developers.google.com/live/shows/474338138

Also, We would like to see Fragments inside the activity and Service for the RESTFull procesing.

[arussel]

for #2

[arussel]

done