Issue 900399 v1 train (cherry picked from commit 2cae0622ee942906daaca90293441afdbd2cb7de)

Bug 900399 - let maximum image pixel resolution customizable, r=djf

Conflicts:

	build/applications-data.js
Merge pull request #12417 from evelynhung/issue-900399

Issue 900399 v1 train (cherry picked from commit 2cae0622ee942906daaca90293441afdbd2cb7de)