Add Travis YAML file
Add Travis YAML file

This is copied from Lab 3.

Part of #7

UMM-CSci-3601-S17/digital-display-garden-iteration-3-dorfner,UMM-CSci-3601-S17/digital-display-garden-iteration-3-dorfner,UMM-CSci-3601-S17/digital-display-garden-iteration-4-dorfner-v2,UMM-CSci-3601-S17/digital-display-garden-iteration-4-dorfner-v2,UMM-CSci-3601-S17/digital-display-garden-iteration-3-dorfner,UMM-CSci-3601-S17/digital-display-garden-iteration-4-dorfner-v2,UMM-CSci-3601-S17/digital-display-garden-iteration-3-dorfner,UMM-CSci-3601-S17/digital-display-garden-iteration-4-dorfner-v2,UMM-CSci-3601-S17/digital-display-garden-iteration-4-dorfner-v2