Write a grunt file to validate js files using jshint, uglify the js files, minify html files, start the webserver and watch the webserver. 

• Validate js files with jshint.
• Uglify the js files, place the uglified files inside "dest/js" folder and the file name should not be changed.
• The source file is located in "src/js".
• Minify the html files in "src" folder and place it inside "dest/src"  folder with the same file name.
• After html minification, setup and run the webserver.
• Assign the option keepalive to be false. 
• Run the watch task to watch the webserver.
• Use the IDE terminal to install plugins.
• Use official grunt plugins only.