add rake tasks for mounting/unmounting the remotfs
fix indentation
introduce SUSE::Connect::Api::VERSION and forward it in accept header
set response headers
test inclusion of response headers
fix ApiError exception message
add connect library steps
check API verion in response headers
fix auth token
add example of authentication header to the comment
Merge pull request #103 from SUSE/review_140612_preparations_for_client_integration_testing

[Review] Request from 'vlewin' @ 'SUSE/connect/review_140612_preparations_for_client_integration_testing'