Merge pull request #257 from Tmee/224_make_admin_filling_spec

224 make admin filling spec
Adds feature to not allow items used in an order
Merge pull request #259 from Tmee/bugs

Adds feature to not allow items used in an order
removed spaces
Changed new item button to say “add new item” to
follow admin#filling style
changed the all method to order the items and filling
by ascending id
initial spec setup
the onion image was deleted long ago. changed it
to steak to be safe
removed the show links, but left the code in case
it needs to be reimplemented

add a break space at the bottom
made create and update filling redirect the user 
to the main index page because the show link was
removed
adjusted the spacing of the columns to match the
fillings page

added image to the table column

made the edit and destroy buttons look like the
blue buttons fillings has
removed image from spec data
set everything to text center to make it visually
similar to admin#fillings
added a max amount of 000 to the price an admin can enter. this prevents a bug that when they enter a string that is way to long, it causes the whole thing to crash
proper indentation
reformatted the page to match the admin#fillings
style
Made a better layout for the page
moved the <br> between the two files
added a <BR>
spaced out the lines so they aren’t longer than
80 characters and are easier to read