Add a couple type annotations
Create a Regex library
cosmetic: remove a blank line
language-ecmascript before v0.15 does not have the Pretty(prettyPring) class
Be sure to avoid variable shadowing when generating temporary variables, fix for # 318
introduce the `padded` function to use fewer `whitespace` markers
add note about Regex library
Always switch out Text elements
merge find and replace in docs
Stop creating dummy divs around every Element in a collage, fixes ordering issue in elm-at-pldi-2013
Get rid of unnecessary logging
Change the internal representation of Text

Now generates significantly fewer spans and is a bit faster.
I also removed the `header` function.
Give more helpful error messages when deserializing elmi files

Provides an error message indicating incorrect compiler version or corrupt file.
Exit status will be 1 in either failure case and error message is printed to
stderr. Uses the same checks against interfaces.data as well as standard .elmi
files since both are susceptible to breaking in the same way.

The following will be displayed when an elmi file has a different compiler
version than the elm compiler that tries to load it:

    justin ~/Code/elm-lang.org/public/examples/Intermediate $ ~/Code/elm/dist/build/elm/elm Pong.elm
    Found build artifacts created by a different Elm compiler version. Please rebuilt cache/Pong.elmi and try again.

The following will be displayed when a file that cannot be deserialized is
encountered:

    justin ~/Code/elm-lang.org/public/examples/Intermediate $ ~/Code/elm/dist/build/elm/elm Pong.elm
    Got an error, 'demandInput: not enough bytes' at offset 10303 of cache/Pong.elmi.

    This error may be due to an outdated or corrupt artifact from a previous build. Please rebuild cache/Pong.elmi and try again.
Merge pull request #320 from jsl/313_verify_serialized_interfaces

Give more helpful error messages when deserializing elmi files
Merge pull request #319 from johnpmayer/dev

language-ecmascript before v0.15 does not have the Pretty(prettyPring) c...
Get rid of either-unwrap dependency and use fewer non-total library functions
Unnecessary style changes

I don't really know why I felt the need to do this, but I am happier
now.
Modify error messages for bad build artifacts to wrap more nicely on the terminal
Rename to `findAll` and `find` like everyone expects :/

It's not consistent with `split` but people seem okay with that.

Also make some examples nicer.
Throw an error when deserializing a bad type

This error should never be encountered, as long as we always update the get
function when the put function is, as required by get . put == id.