Added A Suite of Improvements (#25)

* * Created site files are now placed in an output directory (defaults to
dist.)
* Output directory can be specified via the --out flat
* Added a ton of coments in build.js
* Made functions in build.js use bluebird promises
* Themes are now in the assets/templates folder instead as magic
strings in the source code
* Any number of custom themes (not just light and dark) can be used by creating
a [theme].css file and putting it in assets/themes
* CSS themes are rendered with Handlebars
* CSS themes now rely on Handlebars for specifying the background image

* Restored config.json to template file

* Changes to the blogging feature

* Moved blog templates and config files to assets/blog
* Created blog pages now go to dist/blog/
* Updated blog.js accordingly

* Make blog.js use the --out setting to specify where blog files should
be put
* create a gitfolio.js file that calls blog/update/populate/build.js
files as commands instead of having to run each script manually
* Make blog/populate.js use bluebird promises

* Updated the README to reflect the changes made by this pull request

* Added link to demo site in README

.gitignore

@@ -59,3 +59,9 @@ typings/
 
 # next.js build output
 .next
+
+# Built website files
+dist/
+
+# Editor files and folders
+.vscode/