bug fix where multiple lines in customize your CSS box cause the box to break
bug fix where multiple lines in customize your CSS box cause the box to break

git-svn-id: 15bb71eaf589134a7157e233fb3ab3453d0ff094@1133 b0551a0c-1e16-4222-a7d5-975db1aca215

MichaelMaar/concrete5,MichaelMaar/concrete5,matt9mg/concrete5,TimDix/concrete5,avdevs/concrete5,TimDix/concrete5,matt9mg/concrete5,matt9mg/concrete5,avdevs/concrete5,TimDix/concrete5,MichaelMaar/concrete5,avdevs/concrete5