maintenance update

improved module export
* node.js module.exports is now a tv4 instance (with legacy suport for tv4.tv4)
* tuned component.json, ditched shim
* tuned bower.json

improved testing
* added some checks for module export inegrity to /test/_header.js
* added grunt-component to test component.io build
* added /test/index-component.html to phantomJS tests

improved readme.md / index.html generator
* no demo links on README.md
* expanded javascript in template so gh-pages will add demo links
* style fix: +100px wider column

edited README.md
* rearranged some text
* minor typos and fixes

added version bump
* using grunt-push-release (temporary disabled commit/tag/push/publish)

updated some package.json deps