Larger refactoring to support selendroid fully on Windows #146 which includes killing the emulator as well as using folder names with space character. Ending of HttpRequests was changed to make sure they are closed only once #132 and no as well the timout used for starting emualors is used to configure the stale connection timeout. The method to kill a running app has been moved up to the AndroidDevice and AbstractDevice because this is relavant for hardware devices as well.