Merge pull request #646 from manojlds/master

Option to unignore repositories.config

Author: aroben

VisualStudio.gitignore

@@ -117,6 +117,8 @@ publish/
 # NuGet Packages Directory
 ## TODO: If you have NuGet Package Restore enabled, uncomment the next line
 #packages/
+## TODO: If the tool you use requires repositories.config, also uncomment the next line
+#!packages/repositories.config
 
 # Windows Azure Build Output
 csx/