Added ability to ignore some files

kind-a settings for this     var bundle = browserify_express({
        entry: __dirname + '/server/entry.js',
	ignore: ["./bla-bla-bla.js"], // same as in require() statement
        watch: __dirname + '/server/',
        mount: '/appjs/main.js',
        verbose: true,
        minify: true,
        bundle_opts: { debug: true }, // enable inline sourcemap on js
files
        write_file: __dirname + '/public/js/gl/main.js'
    });
Merge pull request #6 from stavenko/master

Added ability to ignore some files