Revert "Merge pull request #189 from blueyed/revert-tmux-dcs"

This reverts commit 41c6f5294a9fe8c481dde338ffd6e37c04ed4777, reversing
changes made to 1fa1eac643d08976cebceab22cf014a049efb53c.

See https://github.com/chriskempson/base16-builder/pull/189#issuecomment-62105545.