🗺️Ion Core 👛 v3.0.5 ©️ - 👒 OFFICIAL RELEASE 👒 - with REGTEST

this is last release with working regtest for those who want to test zerocoin v1 or need this client for some other reasons.

Changelog to old 3.0.5 from cevap

• [ffefa05] chainparams, change regtest ports from testnets
• [e13b9cc] Update chainparams.cpp, add regtest
• [aa226d1] Fix regtest: pow.cpp
• [91f26ae] Fix regtest: main.cpp
• [5a47fa0] Fix regtest style and showing testnet icons
• [a9abe21] fix travis failing to build due to until.py having invalid sequence
• [f1da291] Update snapcraft to latest
• [2d5205c] Update gitian-descriptors and gitian-keys
• [a8ba650] Update gitian descriptors for building with gitian
• [7d324fa] Update checkpoints
• [7bebc75] Update travis link in README.md
• [eb42d50] Change links from cevap to ioncoincore
• [22b2e9a] Remove unneeded params
• [bf6cf19] Add PoW functionality for mining on regtest