Crush all the pngs.

Output Log: https://gist.github.com/dak180/6a0e79be11d9bbbe88ce
Adjusted some of the Image storage to maintain history from Pull request (related to #50)
Merging Pull Request of dak180-topic/pngcrush to develop (related to #50)
Spaceport link text changed (Fixes #55)
Version 2.7.9.0 Ready
Merge 2.7.9.0 to master