Update getusertransactions.inc.php
Use Defined Limit
[FIX] Workaround for missing confirmations

This will fix issues with those coins that don't track confirmations for
blocks inside the getblock RPC call. It will try to fallback to the
transactions confirmations and insert those instead.

Fixes #1823 as mentioned by @ice00 - Thanks for that!
Merge pull request #1876 from MPOS/block-confirmations

[FIX] Workaround for missing confirmations
Merge pull request #1873 from rog1121/master

Use Defined Limit on getusertransactions API
[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