Update Haskell Platform version

The README.md pointed to the current version of the Haskell
Platform, but the version was outdated. Bumped to current version.
Merge pull request #239 from jsl/update_haskell_platform_version

Update Haskell Platform version
Merge branch 'dev'
get rid of documentation for functions that are not exported
Add `floatList` to docs
Bump the version number to 0.10
Throw errors for unbound type variables in ADTs and aliases, resolves #302
Fix formatting of error when there are two unbound type variables
can have zero fields if no extension could be parsed
Merge pull request #306 from johnpmayer/topic/fixing_empty_record

can have zero fields if no extension could be parsed
cosmetic changes on fix for #305

I felt weird about the previous style where things were more
intermingled. Does everything still look okay?
Fix issues with improperly created characters
Add append and concat functions, organize docs better
Bump version number of elm-server
Fix pattern matching on characters
Make docs nicer
Add the toList and fromList functions
fix string conversion in runtime/
Get rid of old info in the readme