[FIX] another hashrate calc error
Merge pull request #1877 from iAmShorty/hashrate-fix

[FIX] another hashrate calc error
[SQL] Updated blocks table share_id to bigint

Will avoid issues with BIGINT from shares table getting too big for the
INT on the blocks share_id column.

Thanks IRC@webxassDE for the heads up!
Merge pull request #1882 from MPOS/blocks-share-id-bigint

[SQL] Updated blocks table share_id to bigint
Merge branch 'development' into bootstrap