WIP on a unified edit

This allows a unified edit functionality that supports the following:

**`t e 25 due tom`**

* Edits the due date
* Leaves subject, projects and contexts unchanged

**`t e 25 take out the trash with @bob`

* Updates the subject, projects and contexts
* Leaves the due date unchanged

**`t e 25 take out the trash with @bob due tom`

* Updates the subject, projects and contexts
* Updates the due date

**What's missing**

* Tests that exercise this functionality

1 files changed, 2 insertions, 4 deletions

diff --git a/todo.go b/todo.go
index d091cd3..130fd55 100644
--- a/todo.go
+++ b/todo.go
@@ -140,10 +140,8 @@ func routeInput(command string, input string) {
 		app.UnarchiveTodo(input)
 	case "ac":
 		app.ArchiveCompleted()
-	case "e", "edit", "ed", "edit-date":
-		app.EditTodoDue(input)
-	case "es", "edit-subject":
-		app.EditTodoSubject(input)
+	case "e", "edit":
+		app.EditTodo(input)
 	case "ex", "expand":
 		app.ExpandTodo(input)
 	case "gc":