Advance regular events (remove april, add june)
Advance regular events (remove april, add june)

Cryptoparty-Ann-Arbor/Cryptoparty-Ann-Arbor.github.io,Cryptoparty-Ann-Arbor/Cryptoparty-Ann-Arbor.github.io,Cryptoparty-Ann-Arbor/Cryptoparty-Ann-Arbor.github.io