Missing break statement causes bugs on tab keypress

[jeffmay]

Related issues:

• Pressing with an empty text field will not move to the next field
• Pressing with one of the results highlighted will drop both the incomplete token AND the suggested token

There is a missing break; statement before case 13: (line 196) such that pressing becomes equivalent to pressing and in the same event.

[jeffmay]

I forked the repo and fixed this issue.