added cli_test_run-samples to test samples from commandline; added --outputSuffix option

lib/index.js

@@ -12,6 +12,7 @@ module.exports = { process: processMermaid }
 function processMermaid(files, _options, _next) {
   var options = _options || {}
     , outputDir = options.outputDir || process.cwd()
+    , outputSuffix = options.outputSuffix || ""
     , next = _next || function() {}
     , phantomArgs = [
           phantomscript
@@ -23,6 +24,7 @@ function processMermaid(files, _options, _next) {
         , options.ganttConfig
         , options.verbose
         , options.width
+        , outputSuffix
       ];
 
   files.forEach(function(file) {