change suffix so hipchat shows image

hipchat wasn't matching the $png to show the image, so change to &.png
Spelling fix
Fixes parse error
Merge pull request #1502 from snipe/master

Fixes parse error
Merge pull request #1499 from Wilfred/patch-1

Spelling fix
Merge pull request #1480 from leehanel/master

fixes issue #1479 change suffix so hipchat shows image