PNG Compression improvements
Support window.crypto.getRandomValues() in Firefox
Merge pull request #266 from arlolra/firefox

Support window.crypto.getRandomValues() in Firefox
Some cleanup, thanks to @kaosdynamics (fix #238)
Probably the last PNG Compression improvement
Merge pull request #268 from neheb/master

Probably the last PNG compression Improvement.
Push PNGs
Merge pull request #247 from arlolra/transfer

File Transfer
otr authentication via smp