enforce server long running

[every time that server receives a close connection it force the interruption of the running thread that received the notification]
almost there
we currently are making real updates on the main stream [but with certain problems]

Only the main thread have permissions to call directly a acitivity. We have to understand
better how broadcast receivers will interact with Activities on a way to update their views
consistently.
Sender Handler was empty [currently we dont need it to handle the broadcast messages
- we can handle broadcast messages on the RequestHandler It self]
change the default IP Address of connection
[in order to test on real devices, we must  open a ethernet connection
 instead of a private one]
tweets stream is now functional with plain messages
add spam, reply and poll services
base features implemented
- missing some layout improvements and Media Object Attachment or Retweet Functionality
- We will use twitter4j lib to acheive twitter ouath authentication
Merge branch 'master', remote-tracking branch 'origin/architectureRemodelation'

Conflicts:
	lib/pdus.jar
	nearTweetClient/AndroidManifest.xml
	nearTweetClient/gen/pt/utl/ist/cm/neartweetclient/R.java
	nearTweetClient/res/layout/activity_tweets_stream.xml
	nearTweetClient/res/values/strings.xml
	nearTweetClient/src/pt/utl/ist/cm/neartweetclient/connectionTasks/ConnectionStatus.java
	nearTweetClient/src/pt/utl/ist/cm/neartweetclient/services/CreateTweetService.java
	nearTweetClient/src/pt/utl/ist/cm/neartweetclient/services/NearTweetService.java
	nearTweetClient/src/pt/utl/ist/cm/neartweetclient/services/RegisterUserService.java
	nearTweetClient/src/pt/utl/ist/cm/neartweetclient/ui/CreatePollActivity.java
	nearTweetClient/src/pt/utl/ist/cm/neartweetclient/ui/LoginActivity.java
	nearTweetClient/src/pt/utl/ist/cm/neartweetclient/ui/TweetDetailsAcitivity.java
	nearTweetClient/src/pt/utl/ist/cm/neartweetclient/ui/TweetsStreamActivity.java
	nearTweetEntities/src/pt/utl/ist/cm/neartweetEntities/pdu/GenericMessagePDU.java
	nearTweetEntities/src/pt/utl/ist/cm/neartweetEntities/pdu/PDUVisitor.java
	nearTweetServer/src/main/java/com/cm/server/handlers/RequestHandler.java