Update HttpTransportSE.java

Call connection.disconnect() to prevent android from reusing this connection. See explanation here https://code.google.com/p/ksoap2-android/issues/detail?id=173
Update ServiceConnectionFixture.java

Remove the not implemented exception so that HttpTransportSE can call disconnect()
Update HttpTransportSE.java

Disconnect connection
Merge pull request #47 from Islandman93/master

Android disconnect()