PLA-1867 Increase size of minimal image width and disable thumbnail for pictures smaller than 2000px
PLA-1867 corrected formatting and clarification.
PLA-1867 Refactor after codereview
PLA-1867 Refactor after codereview
PLA-1867 Refactor after codereview
Merge pull request #4900 from Wikia/PLA-1867

Pla 1867 -  Increase size of minimal image width and disable thumbnail for pictures smaller than 2000px