Merge pull request #1163 from ma499/nodejs-visualstudio

Ignore analysis files from Node.js tools for Visual Studio 2013

VisualStudio.gitignore

@@ -182,3 +182,6 @@ UpgradeLog*.htm
 
 # Microsoft Fakes
 FakesAssemblies/
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat