Add lacheck as LaTeX checker
Add HAML checker
Add CSS checker, using csslint
Add Javascript checker, using jslint
Support error patterns which match across multiple lines
Add SASS checker
Don't override flymake-split-output when flycheck-mode is inactive
Always set ad-return-value in flymake-split-output advice
Handle incomplete output in overridden `flymake-split-output`
Use explicit argument lists for advice arguments

It's just easier to read than ad-get-arg.
Fix advice name
Add missing quotes in docstrings
Merge pull request #9 from purcell/master

New checkers for css, haml and javascript

Also adds support for multi-line error patterns.
[Fix #10] Work around a type error with compressed files

Work around a supposed bug in Emacs.  Under certain circumstances the
compression handler for `write-region` fails to respect the
`write-region` API documentation, using an argument that is supposed to
be ignored in a numeral comparison.  flymake passes nil for this ignored
argument, hence the type error.
List added checkers in README.org
Grammar tweak and markup fix
Merge pull request #13 from purcell/docs

List added checkers in README.org
Wrap overlong line
Keep error patterns on a single line
Add json checking via jsonlint (from npm)