Revert "New design implemented (only home), in spanish and english"

This reverts commit ddeb7351e0eebae28bbcf1bc91d85e2c8eb56de8.
New site version
New site version
New styles version
New images
trying patch for include error
trying patch for include error
fixed site structure
Site style updated.
Project layout added to NaN Labs theme.
NaN Labs style removed from project examples.
GitHub Repository button added.
404 page style updated.