Throw an exception when an opened image is larger than an arbitrary limit
Remove temporary print
Change exception into a warning
Remove redundant comment [CI skip]
Set limit to to around a quarter gigabyte for a 24 bit (3 bpp) image
Remove stray debug print
Test decompression bomb warnings
Remove redundant commented code [CI skip]
Merge branch 'master' into bomb

Conflicts:
	PIL/Image.py
Use a custom subclass of RuntimeWarning for DecompressionBombWarning
Convert test_decompression_bomb.py to use unittest module
Reset limit in tearDown()
Merge pull request #6 from hugovk/bomb2

Change the decompression bomb warning into a subclass of RuntimeWarning to aid filtering
Merge pull request #674 from hugovk/bomb

Decompression bomb protection