Code review comment for lp:~gcrosswhite/leo-editor/fix-haskell-support

Contains a fix that allows Leo to properly support Haskell.

At the moment tangled Haskell sources do not compile; the fix is to force the tangler to use "-- " (note the space) instead of "--" for the line comment marker. This patch contains an update to the language deliminator dictionary which uses the "underscore hack" to accmplish this.