Reformat files.md

Changed to markdown table layout for ease of reading. Removed old
bitcoin-only information for older versions that we never used.

Author: Fuzzbawls

doc/files.md

@@ -1,31 +1,22 @@
+Filename            | Description
+--------------------|----------------------------------------------------------------------------------------------------------------------------
+banlist.dat         | stores the IPs/Subnets of banned nodes
+pivx.conf           | contains configuration settings for pivxd or pivx-qt
+pivxd.pid           | stores the process id of pivxd while running
+blocks/blk000??.dat | block data (custom, 128 MiB per file); since 0.8.0
+blocks/rev000??.dat | block undo data (custom); since 0.8.0 (format changed since pre-0.8)
+blocks/index/*      | block index (LevelDB); since 0.8.0
+chainstate/*        | blockchain state database (LevelDB); since 0.8.0
+database/*          | BDB database environment; only used for wallet since 0.8.0; moved to wallets/ directory on new installs since 0.16.0
+db.log              | wallet database log file; moved to wallets/ directory on new installs since 0.16.0
+debug.log           | contains debug information and general logging generated by pivxd or pivx-qt
+fee_estimates.dat   | stores statistics used to estimate minimum transaction fees and priorities required for confirmation; since 0.10.0
+budget.dat          | stores data for budget objects
+masternode.conf     | contains configuration settings for remote masternodes
+mncache.dat         | stores data for masternode list
+mnpayments.dat      | stores data for masternode payments
+peers.dat           | peer IP address database (custom format); since 0.7.0
+wallet.dat          | personal wallet (BDB) with keys and transactions; moved to wallets/ directory on new installs since 0.16.0
+.cookie             | session RPC authentication cookie (written at start when cookie authentication is used, deleted on shutdown): since 0.12.0
+onion_private_key   | cached Tor hidden service private key for `-listenonion`: since 0.12.0
 
-* pivx.conf: contains configuration settings for pivxd or pivx-qt
-* pivxd.pid: stores the process id of pivxd while running
-* blocks/blk000??.dat: block data (custom, 128 MiB per file); since 0.8.0
-* blocks/rev000??.dat; block undo data (custom); since 0.8.0 (format changed since pre-0.8)
-* blocks/index/*; block index (LevelDB); since 0.8.0
-* chainstate/*; block chain state database (LevelDB); since 0.8.0
-* database/*: BDB database environment; only used for wallet since 0.8.0
-* db.log: wallet database log file
-* debug.log: contains debug information and general logging generated by pivxd or pivx-qt
-* fee_estimates.dat: stores statistics used to estimate minimum transaction fees and priorities required for confirmation: since 0.10.0
-* budget.dat: stores data for budget objects
-* masternode.conf: contains configuration settings for remote masternodes
-* mncache.dat: stores data for masternode list
-* mnpayments.dat: stores data for masternode payments
-* peers.dat: peer IP address database (custom format); since 0.7.0
-* wallet.dat: personal wallet (BDB) with keys and transactions
-
-Only used in pre-0.8.0
----------------------
-* blktree/*; block chain index (LevelDB); since pre-0.8, replaced by blocks/index/* in 0.8.0
-* coins/*; unspent transaction output database (LevelDB); since pre-0.8, replaced by chainstate/* in 0.8.0
-
-Only used before 0.8.0
----------------------
-* blkindex.dat: block chain index database (BDB); replaced by {chainstate/*,blocks/index/*,blocks/rev000??.dat} in 0.8.0
-* blk000?.dat: block data (custom, 2 GiB per file); replaced by blocks/blk000??.dat in 0.8.0
-
-Only used before 0.7.0
----------------------
-* addr.dat: peer IP address database (BDB); replaced by peers.dat in 0.7.0