Added the getLastValid function for findblock cron
Updated findblock cron to use block->getLastValid
[FIX] Wallet Balance Newmint Calc Fix
[FIX] closing if
[FIX] changed template and calc
[UPDATE] minimum manual payout
[UPDATE] changed wiki url
[FIX] added minimum payout to notification message
[FIX] removed calc
Merge pull request #1891 from iAmShorty/minimum-payout

[UPDATE] minimum manual payout
[FIX] min payout fix, balance not initialized
Merge pull request #1895 from iAmShorty/min-payout-fix

[FIX] min payout fix, balance not initialized
[FIX] delete whitespaces in api keys
[WORKAROUND] Blocks without confirmations

Fixes #1898 once accepted and merged.
Merge pull request #1890 from mxaddict/master

Pull request for findblock cron fix, related to orphaned blocks.
Merge pull request #1896 from iAmShorty/uptimerobot-trim-whitespaces

[FIX] delete whitespaces in uptimerobot api keys
Merge pull request #1884 from iAmShorty/wallet-balance-newmint-fix

[FIX] Wallet Balance Newmint Calc Fix
[FIX] coin_address is string, not int

throws a mysql error when updating coin address in user settings
Merge pull request #1899 from MPOS/findblocks-workaround

[WORKAROUND] Blocks without confirmations
[FIX] Remove +x bits