fix .gitignore and remove .DS_Store
This is no more required as Bootstrap is retrieved from a CDN

Something I've missed yesterday in my CDN related PR
Allow HTML in popovers

to fix popovers on the demo page
Merge pull request #4 from vicb/gitignore

fix .gitignore and remove .DS_Store
Merge pull request #5 from vicb/bootstrap

This is no more required as Bootstrap is retrieved from a CDN
Merge pull request #6 from vicb/popover

Allow HTML in popovers
Fix casing for Dart in description.
Date changes in the footer 2013->2014, and the news on the front page 2014->2013.
Schema.org changes for SEO and social sharing improvements.
[tut/chap6] clarified scope of reorg, added figure, etc.

- Clarified the scope of the refactorings/reorg.
- Added figure to show how the search template HTML was migrated into
the search component template file.
- Some edits to match the code.
- Copy edits.
[tut/chap6] fix suggested by Kathy
[Chap 6] missing commas
[Chap 6] copyedit following Kathy's feedback
[Chap6] avoid switch in subject
Improvements based on Kathy's feedback & made 3-part table narrower
Fixed alt text for img/ch06-1-QueryServiceOutline.png
Merge pull request #15 from chalin/patch-chap6-edits

[tut/chap6] clarified scope of reorg, added figure, etc.
Point to the code lab
[tut/chap5] minor editorial changes
minor copyedit