Upgrade to Linter API v2

init.coffee

@@ -37,7 +37,7 @@ module.exports = AtomLanguageMZN =
     return {
       name: 'MiniZinc',
       grammarScopes: ['source.mzn'],
-      scope: 'file', # or 'project'
-      lintOnFly: true,
+      scope: 'file',
+      lintsOnChange: true,
       lint: @provider.lint
     }

linter-mzn.coffee

@@ -61,10 +61,12 @@ class LinterMZN
       endcol = output[2].match(/\^(\s|$)/).index + 1
 
     message = {
-      type: 'Error',
-      text: output[1..].join('\n').replace(/MiniZinc: /, ""),
-      range: [[line-1,startcol], [line-1,endcol]],
-      filePath: filePath,
+      severity: 'error',
+      excerpt: output[1..].join('\n').replace(/MiniZinc: /, ""),
+      location:{
+        file: filePath,
+        position: [[line-1,startcol], [line-1,endcol]],
+      }
     }
 
     return message