[Review] Request from 'digitaltom' @ 'SUSE/connect/review_140715_adding_json_output_type_to_system_status'

Please review the following changes:
  * 8bc7206 bump version
  * 5a5fff2 don't try to query the server for activations without credentials
  * 4a49e55 add cli parameters: --status and --status-text
  * f165b74 adding json output format to system status
  * 8507fd1 exceptions get raised up until SUSEConnect.rb