Update POOLS.md

Added https://gdcpool.us on there!
[FIX] fixed division by Zero for Coins without valid Network Hashrate
Updated own Pools in POOLS.md
Merge pull request #1076 from Fredyy90/patch-8

Updated own Pools in POOLS.md
[MERGE] Conflict fix
[MERGE] Fix merge conflict
Merge pull request #1075 from Fredyy90/patch-7

[FIX] fixed division by Zero for Coins without valid Network Hashrate
[IMPROVED] Transaction data handling

This will improve loading times on large transaction tables. Thanks
@feeleep75 for helping with this one.

* Do not use SQL_CALC_NUM_ROWS since it will do a full table scan
* Allow admins to disable account transaction summaries to speed up page
  loads on large tables
* added new admin setting under system to Disable TX Summaries

Fixes #1065 once merged
Merge pull request #1077 from TheSerapher/issue-1065

[IMPROVED] Transaction data handling
[FIX] Minor display fix
Merge pull request #1084 from TheSerapher/issue-1081

[FIX] Minor display fix
[FIX] Display bug on mobile
[UPDATE] Moved transactions into special API call
[ADDED] getusertransactions API call

* Fetch last `n` transactions, default `5` max `30`
* Fetch transaction summary if enabled in admin panel

Fixes #1079 once merged.
Merge pull request #1085 from TheSerapher/issue-1079

Issue 1079
[ADDED] Possibility to disable navbar live updates

* Added new admin options: disable_navbar and disable_navbar_api
* Removes LIVE STATS from navigation list
* Removes live updates on Pool General Statistics page
* Added system load checks to getnavbardata API call

This will help to decrease load on high-volume servers at the cost of
losing live status.

Fixes #1014 once merged.
Merge pull request #1087 from TheSerapher/issue-1014

[ADDED] Possibility to disable navbar live updates
fix typo in error message
Merge pull request #1088 from rloomba/patch-1

fix typo in error message
[ADDED] Warning for coin coinformation setting