Cleaning up travis settings. (#231)
Cleaning up travis settings. (#231)

* Cleaning up travis settings.

* Adding G++8 and removing unnecessary comments.

* Adding example failure. DO NOT MERGE

* Revert "Adding example failure. DO NOT MERGE"

This reverts commit e15f35692c050167be9b2d19b90bf8d7addf4a74.

patricksjackson/xcpp,exercism/xcpp,exercism/xcpp,patricksjackson/xcpp