docs(tooltip): fix example code to match what is shown

We we're showing a <a> tag, while in the example code we have
a <abbr> tag.
chore(bower): remove normalize.css from deps

To have the most flexible environment possible, we are now
including normalize.css in the repo and removing it from the
bower.json manifest. normalize was only needed when using
 the source .less files, what probably won't be the case of most
 developers.

 Fixes #61
chore(bower): use different bower manifest for releases

Up until now we were using the bower.json available in the
repository root, which was bloated with development and docs
dependencies, not needed by anyone using the Frontkit's bower
release.