Fix issue causing build error.
Fix bug in setting headers.
Print out a bunch of extra information about type checking.
Fix bug in setting headers.
Fix broken build.
Merge pull request #171 from madscoaducom/dev

fromRecord (toJS): convert recursively and string handling
Add opacity to the collage API
Properly read alpha value.
Ensure that alphas compose when used on groups.
Merge branch 'dev' of https://github.com/evancz/Elm into dev
Add some notes about changes so far.
Switch to using MultiIf for all if expressions. Simplifies AST.
Begin migrating the AST to its own branch for the source syntax of the language.
Begin getting the parser to match the new SourceSyntax modules.
Switch parsers over to new AST
Parameterized the AST for type annotations and variable types. Also rename Guid.hs to Unique.hs which reads a lot nicer.
Rename Model/ to Metadata/ because it now only holds info about the types of library functions.
Continue reorganizing the code-base.

Remove uses of uniplate, introduces a regression in testing the ordering of Defs in let-expressions.
Get the whole compiler building again.
add filepath to docs dependencies