Add and fill in CHANGELOG.md

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

CHANGELOG.md

@@ -0,0 +1,88 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+
+- Documentation: Added CHANGELOG.md
+- JSON API: `getinfo` has new fields `alias` and `color`.
+- JSON API: `listpeers` has new fields `global_features` and `local_features`.
+- JSON API:`listnodes` has new field `global_features`.
+- Protocol: gossipd now deliberately delays spamming with `channel_update`.
+- Config: `--conf` option to set config file.
+
+### Changed
+
+- Config: You can only announce one address if each type (IPv4, IPv6,
+  TORv2, TORv3).
+- Protocol: Fee estimates are now smoothed over time, to avoid sudden jumps.
+- lightning-cli: the help command for a specific command now runs the
+  `man` command.
+- HSM: The HSM daemon now maintains the per-peer secrets, rather than
+  handing them out.  It's still lax in what it signs though.
+- connectd: A new daemon `lightningd_connectd` handles connecting
+  to/from peers, instead of `gossipd` doing that itself.
+- Test: `python-xdist` is now a dependency for tests.
+- Logging: JSON connections no longer spam debug logs.
+
+### Deprecated
+
+Note: You should always set `allow-deprecated-apis=false` to test for
+changes.
+
+### Removed
+
+- JSON API: `listpeers` results no long have `alias` and `color` fields;
+  they're in `listnodes` (we used to internally merge the information).
+
+### Fixed
+
+- Options: `bind-addr` of a publicly accessible network address was announced.
+- Protocol: `node_announcement` multiple addresses are correctly ordered and uniquified.
+- JSON API: `listnodes`: now displays node aliases and colors even if they
+  don't advertise a network address
+- When we reconnect and have to retransmit failing HTLCs, the errors weren't
+  encrypted by us.
+- `lightningd_config` man page is now installed by `make install`.
+- Fixed crash when shutting down during opening a channel (#1737)
+- Don't lose track of our own output when applying penalty transaction (#1738)
+- Protocol: `channel_update` inside error messages now refers to correct channel.
+
+### Security
+
+## [0.6] - 2018-06-22
+
+In the prehistory of c-lightning, no changelog was kept.  But major
+JSON API changes are tracked.
+
+### Deprecated
+
+Note: You should always set `allow-deprecated-apis=false` to test for
+changes.
+
+- Option: `port`.  Use `addr=:<portnum>`.
+- Option: `ipaddr`.  Use `addr`.
+- Option: `anchor-confirms`.  Use `funding-confirms`.
+- Option: `locktime-blocks`.  Use `watchtime-blocks`.
+- Protocol: on closing we allow out-of-range offers, prior to spec fix
+  2018-01-30 ("BOLT 2: order closing-signed negotiation by making
+  funder send first." `90241d9cf60a598eac8fd839ac81e4093a161272`)
+- JSON API: `listinvoice` command.  Use `listinvoices`.
+- JSON API: invoice result fields `paid_timestamp` and `expiry_time`.  Use
+  `paid_at` and `expires_at`.
+- JSON API: `invoice` command field `fallback`.  Use `fallbacks`.
+- JSON API: `decodepay` result fields `timestamp` and `fallback`.  Use
+  `created_at` and `fallbacks`.
+- JSON API: payment result fields `timestamp`.  Use `created_at`.
+- JSON API: `getinfo` result field `port`.  Use `binding` and `address` arrays.
+- JSON API: `getlog` result field `creation_time`.  Use `created_at`.
+- JSON API: `getpeers` result field `channel_reserve_satoshis`.  Use `their_channel_reserve_satoshis`.
+- JSON API: `getpeers` result field `to_self_delay`.  Use `their_to_self_delay`.
+  
+
+[Unreleased]: https://github.com/ElementsProject/lightning/compare/v0.6...HEAD
+[0.6]: https://github.com/ElementsProject/lightning/releases/tag/v0.6