added block validation and account validation scripts
applied seraphers proposed fixes & suggestions
fixed newlines
removed a debug line
fixed orphan detection
[FIX] Payout notification type in list
Fix Notifications Class
Added the getLastValid function for findblock cron
Updated findblock cron to use block->getLastValid
Update README.md
[FIX] PHP Notice on Admin Settings page
[FIX] Removed method call on PPS globals
removed finally block
[FIX] Permissions
Update getusertransactions.inc.php
Use Defined Limit
[FIX] fixed nethashrate for some coins
[FIX] fixed calculation
[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!
[FIX] another hashrate calc error