0.3.1

Improvements:

• Service extension config files can now be added under "/etc/nginx/sites-enabled/service-extension/*.conf" without the need to bake a new image (#22)
• Increased "client_max_body_size" to 1G (#38)

Fixes:

• Removed redundant htpasswd file (#21)
• Removed baked in redundant SSL certificates (#23)
• Folder creation for /usr/share/nginx/html (#35 & #39)
• README updates (#31)