Remove the Makefile and replace the submodule update with a grunt tas…

…k. Thanks to @ryanneufeld. Closes gh-953.

grunt.js

@@ -7,6 +7,9 @@

/*jshint node: true */
/*global config:true, task:true, process:true*/

var child_process = require("child_process");

module.exports = function( grunt ) {

	// readOptionalJSON
@@ -379,22 +382,29 @@ module.exports = function( grunt ) {
		});

	grunt.registerTask( "submodules", function() {
		var done = this.async();
		var done = this.async(),
			// change pointers for submodules and update them to what is specified in jQuery
			// --merge	doesn't work when doing an initial clone, thus test if we have non-existing
			// submodules, then do an real update
			cmd = "if [ -d .git ]; then \n" +
				"if git submodule status | grep -q -E '^-'; then \n" +
					"git submodule update --init --recursive; \n" +
				"else \n" +
					"git submodule update --init --recursive --merge; \n" +
				"fi; \n" +
			"fi;";

		grunt.verbose.write( "Updating submodules..." );

		// TODO: migrate remaining `make` to grunt tasks
		//
		grunt.utils.spawn({
			cmd: "make"
		}, function( err, result ) {
			if ( err ) {
		child_process.exec( cmd, function( err, stdout, stderr ) {
			if ( stderr ) {
				console.log(stderr);
				grunt.verbose.error();
				done( err );
				done( stderr );
				return;
			}

			grunt.log.writeln( result );
			grunt.log.writeln( stdout );

			done();
		});