WIP replaced String with Text

In response to https://github.com/faylang/fay-text/issues/1
Search-replace succeeded, but I need some help compiling and running the test file.

Command used: 
 .cabal-sandbox/bin/fay src/DOM.hs --package fay-text --package-conf=.cabal-sandbox/x86_64-linux-ghc-7.6.3-packages.conf.d/ -p
fay: ghc-pkg describe error:
ghc-pkg: cannot find package fay-text
\
This one compiles without errors, but I am guessing it is taking a fay-dom from the sandbox directory, because it also succeeds when I break DOM.hs on purpose
.cabal-sandbox/bin/fay --html-wrapper test.hs --package fay-dom --package-conf=.cabal-sandbox/x86_64-linux-ghc-7.6.3-packages.conf.d/ -p