add sonar plugin and reconfigure cobertura plugin
remove unneeded sonar config
add unit test
Merge pull request #103 from alberts-tid/task/add_unit_tests

add unit test
fix bug
throw exception if token header is empty
modify thrown exception
Merge pull request #104 from alberts-tid/bug/fix_empty_token_header

throw exception if token header is empty
Merge pull request #105 from alberts-tid/bug/overwritten_attributes

fix bug
add installation check on puppet call using attributes
uncomment code
change exception to have a 401 on error
add delete logs to puppet.log and chef.log
REFACTOR tags about fixed bugs. FIX some features after bug fixing: (product with attributes); FIX hooks managing VM agents; REFACTOR fine tunning: ready for jenkins execution
Merge pull request #107 from alberts-tid/task/change_auth_header_exception

change exception to have a 401 on error
Merge pull request #106 from alberts-tid/bug/fix_manifest_execution_check

Bug/fix manifest execution check
REFACTOR indentation
REFACTOR skip tags
Merge pull request #108 from alberts-tid/bug/delete_log_fix

add delete logs to puppet.log and chef.log
add auth headers to wrapper integration