dependency tracking; code cleanup; removed option to discard; move to

trash rather than delete

README.md

@@ -85,12 +85,6 @@ Then you can run `toru new` to create your first task.
 
 ## Roadmap
 
-- Dependency tracker
-    - Store dependencies in a file and correctly update them upon creation and removal of notes
-    - Error if any circular dependencies are introduced
-    - Make sure dependencies written to file are only those that could be successfully created
-    - List dependencies as a tree on note view below info
-    - Disallow marking a task as complete if it has incomplete dependencies
 - Options to configure and customise output of `list`
     - Simple query language to select:
         - which columns to include
@@ -100,4 +94,3 @@ Then you can run `toru new` to create your first task.
         - only include tasks with incomplete dependencies, and similarly only tasks which are not dependents
         - due date, completion date, etc greater than or less than specific value
     - If no values given, use a default query stored in `state.toml`
-- Automatically added recurring notes system