Move and correctly rename deprecated plugin approach as a plugin is developed for Pate v 2
Simplify plugin module name
Add service entry
Be more explicit
Update isort plugin to match pate2 requirements
Update documentation to show how to install plugin for both new and old version of kate
Add isort_plugin menu
Merge pull request #155 from timothycrosley/feature/fix-issue-154

Feature/fix issue 154