Minor fixes
Fix to CheckBlock to prevent crash
Various Upstream updates:
[Build/Depends] Various Updates
[Backport] Make connect=0 disable automatic outbound connections.
[GUI] Peer table: Visualize inbound/outbound state for every row
[GUI] Don't log to console by default.
[Shutdown] remove PID file at the very end.

Qt: Add "Check For Updates" function under Help menu
Qt: Add Block Count under Network Status
Qt: Add shortcut to open .conf files (CTRL + D dapscoin.conf / CTRL + M masternode.conf)
Qt: Add OK Button to Send TX Dialog
Qt: Make "Data Directory" and "Last block hash" details selectable
LOTS of under the hood changes to align with BTC/PIVX code where applicable (more to come)
Lots of code cleanup, removing unnecessary code/UI
Updated checkpoints to 300k
Updated logging
Syncing updates from Upstream
Decoded decoys now only show the decoy (utxo) that was relevant to the transaction and does not decode other readable decoys.
Updated Translations
Fix size with low resolution
Less freezing (Part 1)
[GUI][Model] Save cache BlockIndex tip in the model
[Init] Combine common error strings so translations can be shared
[Init] Do parameter interaction before creating the UI model
[Net] Split DNS resolving functionality out of net structures
[Net] Fix de-serialization bug where AddrMan is corrupted after exception (peers.dat fix)
[P2P] Remove p2p alert system
[Qt] Replace deprecated Qt methods
[Refactor] move nReserveBalance from main to wallet
[RPC][Daemon] Fix Passphrase issue