Admin Panel fully functional

1. Inputs correctly display paths to images if they've been set.
2. The desired social services have been moved to the top of the input
list
3. The default styles for the different elements have been placed into a
text-area for better styling.
4. Broken images have been disabled (commented out)
5. Author section commented out due to broken images.

When MiraMiraMira gets updated to 4.0, we can re-enable the broken images
as the plugins_url method accepts a path beginning with ../ on 4.0 but not
3.1.2 (which is why the images have to be disabled for now)
Dont set a hover image if argument is empty string