Missing log: relabeling block

[nikkihutchins]

Student can right click on block and select "relabel..." to change the block label (e.g., from "set x position" to "set x velocity")
This sequence of actions involves:

1. right click
2. select "relabel..."
3. select new block label
   This may need two new logged actions, but initial thoughts are that only the select new block label is necessary as it impact code construction. A student can right click and select relabel, but then decide not to.