Toolbar: Correctly display "More" label on catch-all groups

Also added an example catch-all group to toolbar demo.

Change-Id: Id5b4092876b226499001d8ee0af7c0225b66698c
Toolbar demo: Fix tool name mismatch

Id5b40928 was a nice way to find out we had unused tools here.

Change-Id: Ib95bc0c14e1f4b2552dc9d16d4801821e8e7e3e1
Merge "Toolbar: Correctly display "More" label on catch-all groups"
Merge "Toolbar demo: Fix tool name mismatch"