Migrated to common widgets plugin.
Removed old plugin from feature.
Removed dependency on old plugin
Replaced use of analysis monitor
Don't reuse Python process if script directory is different

This is so that sys.path[0] can be safely set when doing a runScript.
See dawn-common.git:7015a5b
Merge branch 'master' of git@github.com:DawnScience/dawn-workflow.git
Updated method callers to give peak class
Changed to use function interface
Merge branch 'master' of github.com:DawnScience/dawn-workflow
ADMIN: remove unnecessary and out of date "requires"
Merge branch 'master' into actorv5