renamed command from pricing to scrooge
added symbol to service
Merge pull request #290 from mkurek/feature/service-symbol

added symbol to service
Merge pull request #289 from mkurek/feature/blade-servers

renamed commands from pricing to scrooge
Merge branch 'develop' into feature/gui-main-page

Conflicts:
	src/ralph_scrooge/tests/utils/factory.py