Add Gruntfile.js for Grunt.

[haphut]

Grunt is a build tool, like make. Here are the basics and a sample.

[jjrv]

Plovr is preferred for building. It's a single .jar containing closure compiler and relevant additional tools for compiling and minifying the project. It can also function as a service keeping the JIT-compiled Java-based compiler in memory, making the build process take about 90% less time for repeated builds. Of course Closure Compiler's standard Python-based build scripts also work.

Plovr fits the philosophy of LocalRoute.js which will also be a single .js file capable of most functionality with just Node.js builtin modules or a web browser.