Start big route change, doesn't build yet

I decided to add some safety to routes:

- Use dedicated newtypes
- Use CI for the CI-unique DB fields

Since such a change requires so many changes in many source files, this
is also a chance to do other such breaking changes. I'm recording the
change gradually. It won't build until I finish, so for now don't waste
time trying to build the app.

src/Text/Blaze/Local.hs

@@ -0,0 +1,30 @@
+{- This file is part of Vervis.
+ -
+ - Written in 2016 by fr33domlover <fr33domlover@riseup.net>.
+ -
+ - ♡ Copying is an act of love. Please copy, reuse and share.
+ -
+ - The author(s) have dedicated all copyright and related and neighboring
+ - rights to this software to the public domain worldwide. This software is
+ - distributed without any warranty.
+ -
+ - You should have received a copy of the CC0 Public Domain Dedication along
+ - with this software. If not, see
+ - <http://creativecommons.org/publicdomain/zero/1.0/>.
+ -}
+
+module Text.Blaze.Local
+    (
+    )
+where
+
+import Prelude
+
+import Data.CaseInsensitive (CI)
+import Text.Blaze
+
+import qualified Data.CaseInsensitive as CI
+
+instance ToMarkup s => ToMarkup (CI s) where
+    toMarkup = toMarkup . CI.original
+    preEscapedToMarkup = preEscapedToMarkup . CI.original