[v1.0.0 osx 10.10.1] TypeError: sodium.crypto_stream_xor_instance is not a function

[blahah]

NOTE: This bug will prevent sciencefair running at all on OSX 10.9 and 10.10. Users wishing to use sciencefair on those systems should follow this issue.

Description

App freezes with a black screen on startup on OSX 10.9 and 10.10.

Details

https://sentry.io/codeforscience/sciencefair/issues/300109566/

TypeError: sodium.crypto_stream_xor_instance is not a function
  at Protocol._onopen (/Applications/ScienceFair.app/Contents/Resources/app.asar/node_modules/hypercore-protocol/index.js:283:32)
  at Protocol._onmessage (/Applications/ScienceFair.app/Contents/Resources/app.asar/node_modules/hypercore-protocol/index.js:311:17)
  at Protocol._parseMessage (/Applications/ScienceFair.app/Contents/Resources/app.asar/node_modules/hypercore-protocol/index.js:365:10)
  at Protocol._parse (/Applications/ScienceFair.app/Contents/Resources/app.asar/node_modules/hypercore-protocol/index.js:330:37)
  at Protocol._write (/Applications/ScienceFair.app/Contents/Resources/app.asar/node_modules/hypercore-protocol/index.js:238:8)
...
(3 additional frame(s) were not displayed)

This is an issue caused by hypercore-protocol trying to use a libsodium feature that is not yet available in sodium-javascript.

Relevant issues:

• Error: sodium.crypto_stream_xor_instance is not a function hypercore-protocol/hypercore-protocol#15
• crypto_stream_xor_instance sodium-friends/sodium-javascript#5

[blahah]

Fixed upstream - new builds will automatically use the right version of sodium-javascript