ExpertSenderTest: tests are marked as skipped when no configuration is provided
Merge pull request #5 from MonsterMediaGroup/skipTestsWhenNoConfig

ExpertSenderTest: tests are marked as skipped when no configuration is provided
ExpertSenderEnum: added ::getTypes(), ::getOperators(), ::getOrders(), ::getModes() methods
Added Request\AddUserToList class – provides a clear interface to create user-list subscriptions (plus tests)
ExpertSenderTest: getParam() helper method + example configuration in params.json.dist
Merge pull request #6 from MonsterMediaGroup/AddUserToListRequest

Add user to list request value object
Some test fixes
README.md update & PhpDoc fixes
Mistake in README.md
long lines shorter
Merge pull request #8 from MonsterMediaGroup/long_lines_shorter

Long lines shorter