create pass_through community board for zagreb psl

[balmas]

Request from @nevenjovanovic

Community and Board Name: "Zagreb PSL" Reviewers: Neven (nevenjovanovic-aai) and Alex Simrell (asimrell1) Passthrough URL: https://github.com/nevenjovanovic/zagreb-psl

(PSL stands for "Prevodjenje s latinskog" (Latin Translation -- one of our undergraduate courses).

• [x] fork repo to perseids-proxy-user
• [x] create proxy
• [x] deploy configuration
• [x] create community and board
• [x] notify Neven it's ready

[balmas]

@TDBuck the configuration should be deployed by 9am today. Please create the community and let Neven know when it's ready. Thanks!

[TDBuck]

All set up, let me know if there are any problems with the board/community

[balmas]

super. Thanks!