#3185: Set filesize limit for inline files.
#3185: Pull max filesize from variable.
#3185: Wrap it in an isset
#3185: Allow admins to set maximum filesize for inline files.
Merge branch 'SCHOLAR-3.x' into 3185-max_filesize
Merge pull request #3423 from openscholar/3185-max_filesize

Set filesize limit for inline files.