Slava Karpenko

Results 4 issues of Slava Karpenko

(Credit for this pull request goes to @mcyril) - Added GTIndex.checksum accessor - Added addPathspecs/removePathspaces calls. - Fixed proper nullability for enumerateConflictedFiles - Converted GTRepositoryStatusFlags into NS_OPTIONS for proper handling...

enhancement
test needed

**Describe the bug** The recent [PR](https://github.com/mimblewimble/grin-wallet/pull/537) breaks the ability to mine on a node that runs on a remote machine. ` ERROR grin_servers::mining::mine_block - Failed to get coinbase from http:/x.x.x.x:3415....

Adding the 2Miners.com mining pool payout address that is used by the payouts system (miners can mine altcoins and automatically get paid in TON).

As suggested in the README, opening an issue to add a known address. I have created a pull request [here](https://github.com/catchain/address-book/pull/49). 2Miners.com allows their miners to anonymously provide a TON address...