fix: "Instance ... already exists" problem
fix: missed import was added
openstack: API request exception was renamed
openstack: waiting to delete instance was extracted
openstack: wait_deletion_for was refactored
openstack: response code was added to OpenStackApiError exception
misc: with_timeout decorator was parameterized
fix: for raising wrong exception
misc: comments were corrected for with_timeout decorator
openstack: exception handling was moved to more proper place
misc: _alarm_handler was moved
misc: waiting for deletion function was renamed
Merge branch 'develop' into hotfixes
fix: for exception raising
Merge pull request #21 - fix: "Instance ... already exists" problem