Revert "Removed unneeded alex/happy build from travis script."

This reverts commit c1d136c6dc26e8e7e0f90d64a8348030dcb0d751.
Revert "Travis script: Removed alex, happy."

This reverts commit feb282c5e39cc0971c4373fb4c44de273ee71a6f.
Travis script: Changed 7.8.1 to 7.8.2 in conditional.