removed chrome frame option from meta tag

Google has discontinue the Chrome frame project so I suggest to remove it. Event HTML5 boilerplate has removed it https://github.com/h5bp/html5-boilerplate/commit/8fc26501f4635df92bbbff966d8d6e6064e0e419
Make blog title and description more legible on light backgrounds

Adds a light shadow to blog title and description to give slightly more contrast between text and background when a cover image is used with a predominently light colour. This is not a complete fix, because heavy shadows do not lend to the aesthetic of Casper - however it does go some way to making a small improvement to legibility in most cases.

Related: https://github.com/TryGhost/Ghost/issues/1768
replaced to html5 charset tag

http-equiv="Content-Type" content="text/html" is invalid in HTML5.
Adding encode helper to share link
Respect the blog URL (and subdirectory) in footer
Add missing span to page template

Fixes #67
Cleaned up comments and indentation
Removed conditional author check

Because a post always has an author. Except when Ghost first runs, and there is the welcome post with no author. But in this case Ghost simply outputs nothing - I haven’t been able to make anything explode.
Adding explicit favicon link
2013 => 2014
Update post.hbs

updated twitter url to use https inline with the other sharing services
Add support for author.url and author.location output

Closes #72
Better responsive images

Closes #76
Corrected link
Remove specific resolution optimisation