Revert "Disable problematic defadvice"

This reverts commit 27cee3d6ccc586b4bc30fb322927a6d275e54c34.
Revert "Remove modification of safe-local-eval-forms"

This reverts commit d7ebd9e3b4d25ad859eb123713e44a220e693ba8.
Revert "Refine show-paren-mode and show-smartparens-mode faces"

This reverts commit 38b3094dd0098de86bf972c933df76f13a1da981.
Revert changes to font-lock-builtin-face

This partially reverts commit 26eb5433532efc86d86addb31e127e189c61df72.
[local] new colors zenburn-{black,white}
[local] "gui" faces
[local] theme highlight-symbol-face