Sorted the list of environment names
Added envvars resolving for import from location
DEPL-5298 Sorted environments list

Slightly improved version of PR: https://github.com/jenkinsci/deployit-plugin/pull/9
DEPL-5302 Added some unit tests
Added envvars resolving for import from location
DEPL-5302 Added some unit tests
DEPL-5302 merge changes
Merge pull request #10 from jdewinne/master

DEPL-5302 Added some unit tests
Added feature: Evaluate environment variables when computing the
artifact name
Merge pull request #11 from ascheman/master

Added feature: Evaluate environment variables when computing the artifact name