Squashed commit of the following:

commit 40793c033cca328cba759b31c83f11fcd0664f08
Author: Sergey Ovsyuk <sergey.ovsyuk@gmail.com>
Date:   Fri Sep 6 17:28:04 2013 +0300

    add GetComputersLogic

commit c760be709d9d7b0255007e7d0a74ee64f7eee437
Author: Sergey Ovsyuk <sergey.ovsyuk@gmail.com>
Date:   Fri Sep 6 17:22:35 2013 +0300

    change test connection parameters

commit 3f6ea4cda978edff57b6445eba058f8167accc57
Author: Sergey Ovsyuk <sergey.ovsyuk@gmail.com>
Date:   Fri Sep 6 17:19:15 2013 +0300

    refactoring code