Reset locales when running lmake.  Fixes #665.
Makes the haml executable configurable.  See #677.
Sets the status line of the location window.

Shows the command used to produce the error list on the status line of
the location window.  Also fixed a (harmless) refresh bug.
Add filetype to the status line of the location window.
Update errorformat for sass.  Fixes #42.
Merge branch 'master' into gcc_refactor