* 'ais_shell.py' ver 3.1.5

  - additional checks in 'GetlistInformation()' functions on the basis of 'AIS_List_Get Information()' which returns the number of connected reader, and on the basis of whose value is deleted HND_LIST list with handlers of devices

git-svn-id: svn://192.168.1.162/sw_open/ais_readers/python/examples/shell/trunk@63 0228885a-6ad7-41a9-bcf9-d0ec016d0fc8