Moved image showing functionality to from theme to plugin
Cleaned up JavaScript errors from jshint
Added start of image management on frontend
Added jQuery-File-Upload plugin.

For the purpose of managing file uploads without re-writing a ton of stuff,
I've added in [jQuery-File-Upload](https://github.com/blueimp/jQuery-File-Upload/)
to a new folder for public plugin JavaScript files.

Additionally, I have uploaded gulp to manage these plugin files into a single
JavaScript file.
Basic image upload form JavaScript
Added gulp-sourcemaps to gulpfile
Fixed issue with the order in which gulp was concatonating plugin files
Added plugin file for uploads to WordPress enqueue
Added in minification to gulp with new sourcemaps
Added working AJAX image uploading
Made it such that only one image can be featured (at this time)
Merge pull request #4 from myfossil/image-mgmt

Image management (ability to upload an image to represent a fossil)