Summary:
Fixes T2820
Grepped for `PhabricatorFileImageMacro`, a common approach to load image macros from storage. Cleaned up file loading too (in most cases where I could be sure that I won't break anything).
Did not touch the `add_macro.php` util script, since many users will assume the user `ubuntu` or `ec2-user` to run the script. Add no sessions and no CSRF protection measures...
Test Plan:
Browsed around all kinds of places. Created and looked at memes, created and edited macros. Used them in Remarkup (with flushed cache). Used `macro.query`, verified it did not crash (that's always a good sign).
Could not verify object handles, since I have no idea where they appear right now.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Maniphest Tasks: T2820
Differential Revision: https://secure.phabricator.com/D5418
Summary: "a:" plus "b" and "a" plus ":b" created the same ID.
Test Plan: Created a meme.
Reviewers: DeedyDas, epriestley
Reviewed By: epriestley
CC: aran, epriestley
Differential Revision: https://secure.phabricator.com/D4631
