Re-Added GNUnet image
Merge remote-tracking branch 'upstream/master'
Resized and alpha layer removed.
Merge remote-tracking branch 'upstream/master'
Add Opera as propietary web browser
Add protocol section, update Tent description
Merge remote-tracking branch 'upstream/master'
Scaled image to 50x50px
Merge pull request #449 from titanous/tent-protocol

Add protocol section, update Tent description
Merge pull request #448 from lazlolazlolazlo/opera

Add Opera as propietary web browser
Merge pull request #440 from maccaches/master

Re-Add GNUnet image
move protocol below software
Rescale images to correct size and remove transparent backgrounds
Optimize images for web