Client: Allow Bitcoin Segwit addresses

[Richard87]

I can't publish a bitcoin segwit address..

[dabura667]

bech32 native segwit addresses are definitely a must.

[dabura667]

https://github.com/sipa/bech32/blob/master/ref/go/src/bech32/bech32.go

@maxtaco Here's a bech32 implementation in Go that will decode and check bech32 segwit addresses.

SegwitAddrDecode("bc", "bc1qwqdg6squsna38e46795at95yu9atm8azzmyvckulcc7kytlcckxswvvzej")
// This will throw an error if the first string doesn't match the string portion all the way up to the last "1" character.
// bc is for bitcoin mainnet

[dabura667]

also, bech32 is case insensitive... so I would recommend taking the user input and converting to lower case so you only have to check for "bc" and not "bC" "Bc" and "BC"

[rex4539]

One more vote for Bech32 support.

[waleedtee]

my segwit address is still not accepted

[xthursdayx]

Was wondering if there had been any progress on this? @dabura667 's post seemed promising, but it was posted more than a year ago.

[junderw]

They have an active pull request now.

Should be done in a few weeks.

[junderw]

16764

merged 6 days ago.

should be any day now.