Update .travis.yml
Update package.json
0.4.7
Update changelog - todo: cleanup
Move changelog to Releases

https://github.com/yeoman/generator-webapp/releases
pass target through from deprecated server task
Small improvements to tests
package.json: updating authors
X-UA-Compatible is deprecated in IE11

http://msdn.microsoft.com/en-us/library/ie/bg182625(v=vs.85).aspx
followup to #246
Update Gruntfile.js
output modernizr to script/vendor folder

Fixes #249