Fix orderer width bug

Summary:
wrapping the orderer in an inline-block caused it's width to become too small
to contain more than one element. This hacky fix forces the width to be 480px
so that you can put some things in your orderer. Unfortunately, it still no
longer expands.

Test plan:
http://localhost:9000/test.html#content=%7B%22question%22%3A%7B%22content%22%3A%22**Count%20out%20%242%24%20flowers.**%5Cn%5Cn%5B%5B%E2%98%83%20orderer%201%5D%5D%5Cn%5Cn%5B%5B%E2%98%83%20input-number%201%5D%5D%22%2C%22widgets%22%3A%7B%22orderer%201%22%3A%7B%22type%22%3A%22orderer%22%2C%22graded%22%3Atrue%2C%22options%22%3A%7B%22options%22%3A%5B%7B%22content%22%3A%22!%5B%5D(https%3A%2F%2Fka-perseus-graphie.s3.amazonaws.com%2Fb7a6f30d245d186cf42961677ddafa118fef5fdd.png)%22%7D%5D%2C%22correctOptions%22%3A%5B%7B%22content%22%3A%22!%5B%5D(https%3A%2F%2Fka-perseus-graphie.s3.amazonaws.com%2Fb7a6f30d245d186cf42961677ddafa118fef5fdd.png)%22%7D%2C%7B%22content%22%3A%22!%5B%5D(https%3A%2F%2Fka-perseus-graphie.s3.amazonaws.com%2Fb7a6f30d245d186cf42961677ddafa118fef5fdd.png)%22%7D%5D%2C%22otherOptions%22%3A%5B%5D%2C%22height%22%3A%22auto%22%2C%22layout%22%3A%22horizontal%22%7D%7D%2C%22input-number%201%22%3A%7B%22type%22%3A%22input-number%22%2C%22graded%22%3Atrue%2C%22options%22%3A%7B%22value%22%3A%220%22%2C%22simplify%22%3A%22required%22%2C%22size%22%3A%22normal%22%2C%22inexact%22%3Afalse%2C%22maxError%22%3A0.1%2C%22answerType%22%3A%22number%22%7D%7D%7D%7D%2C%22answerArea%22%3A%7B%22type%22%3A%22multiple%22%2C%22options%22%3A%7B%22content%22%3A%22Drag%20cards%20into%20the%20box.%22%2C%22widgets%22%3A%7B%7D%7D%2C%22calculator%22%3Afalse%7D%2C%22hints%22%3A%5B%7B%22content%22%3A%22Count%20%241%2C%202%24.%20%20%5CnDrag%20a%20flower%20into%20the%20box%20for%20each%20number.%20%5Cn%5Cn!%5B%5D(https%3A%2F%2Fka-perseus-images.s3.amazonaws.com%2Fa46939f75555ec95235f021cea960e40bff2cbf5.jpg)%20%20%5Cn%24%5C%5Cqquad%5C%5C%3A%5C%5C%3A%5C%5C%3A%201%20%5C%5Cqquad%5C%5Cquad%5C%5C%3A%202%24%5Cn%22%2C%22widgets%22%3A%7B%7D%7D%5D%7D
Make sure that you can add multiple flowers to the orderer

Auditors: justinjaffray