Fix the problem that does not work well reloading feature (space key) at some browser or environment.
Add 'go to page' feature.
- Hash of URL indicate current slide index, and when hash of URL changed then show the slide which specified by hash.
- 'Slide n of m' change from static text to drop down list.
- PowerPoint compatible keyboard shortcut: press some numeric key and enter, for example, '2','1',[Enter], then show the slide page 21.
Fix: jQuery .js file does not load from CDN at SSL access & ran into security violation.
- Change the URL of jQuery .js file from absolute URL to network-path reference URL. [http://tools.ietf.org/html/rfc3986#section-4.2]
Merge pull request #7 from jsakamoto/fix/fail-jqload-at-ssl

Fix: jQuery .js file does not load from CDN at SSL access & ran into security violation.
Merge pull request #8 from jsakamoto/fix/reload_issue

Fix the problem that does not work well reloading feature (space key) at some browser or environment.
Merge pull request #9 from jsakamoto/feature/goto_page

Add 'go to page' feature.