* Added "in plugin update message" functionality
* Added changelog to output (requires theme to use `changelog.txt` file)
* Added enqueue statement for scripts and styles
* Added CONSTANTS for "DRY" purposes and customization paths
* Added more specificity to the output for more finely tuned styles
* Added plugin "icon" assets
* Change sanity check to ensure `$theme_slug` is not empty versus not `null`
* Corrected shortcode filter reference to indicate `bns_theme_details`
* Corrected conditional statements (changed `===` to `==`)
* Modified `textdomain` to use full plugin slug `bns-theme-details`
* Spice things up by leveraging BNS Inline Asides to minimize the Changelog display
* Switched order of "Theme Name and Author" with the "Screenshot"
* Updated required version to 3.6 in reference to the shortcode filter option
* Updated `exit_message` if WordPress version is too low
* Wrapped `<img />` tag in a `<p />` tag for better display compatibility

git-svn-id: https://plugins.svn.wordpress.org/bns-theme-details/trunk@1055874 b8457f37-d9ea-0310-8a92-e5e31aec5664