Revert "Remove wercker."

This reverts commit 925d0b2e58ac0e12a1a73b9604e8e4bb107b483f.
Disable Travis
Merge branch 'wercker' into develop
Notify after deploy
Revert "Notify after deploy"

This reverts commit 92cef25b0bc6413599caf7bd20ae062a003647b9.
Merge branch 'develop'