added grunt task for uglify and cssmin
refactor dist directory structure
update readme
add .gitignore
added contributors to package.json
/dist files
fixed minor typo
Merge branch 'master' of https://github.com/Esri/bootstrap-map-js into add_grunt
removed popup and src from dist/
Merge pull request #122 from andygup/add_grunt

Add grunt task to minify the source