feat(CHANGELOG): update for 0.3.0

update for 0.3.0 + style fixes

CHANGELOG.md

 # go-graphsync changelog
 
+# go-graphsync 0.3.0
+
+Significant updates allow for:
+- completed response hooks run when response is done going over wire (or at least transmitted)
+- listening for when blocks are actually sent
+- being notified of network send errors on responder
+
+### Changelog
+
+- github.com/ipfs/go-graphsync:
+  - docs(CHANGELOG): update for 0.2.1 ([ipfs/go-graphsync#103](https://github.com/ipfs/go-graphsync/pull/103))
+  - Track actual network operations in a response (#102) ([ipfs/go-graphsync#102](https://github.com/ipfs/go-graphsync/pull/102))
+  - feat(responsecache): prune blocks more intelligently (#101) ([ipfs/go-graphsync#101](https://github.com/ipfs/go-graphsync/pull/101))
+
+### Contributors
+
+| Contributor | Commits | Lines ± | Files Changed |
+|-------------|---------|---------|---------------|
+| Hannah Howard | 2 | +1983/-927 | 29 |
+
 # go-graphsync 0.2.1
 
 Compatibility fix for 0.2.0

messagequeue/messagequeue.go

@@ -8,12 +8,12 @@ import (
 	"time"
 
 	blocks "github.com/ipfs/go-block-format"
-	"github.com/ipfs/go-graphsync/notifications"
 	logging "github.com/ipfs/go-log"
 	"github.com/libp2p/go-libp2p-core/peer"
 
 	gsmsg "github.com/ipfs/go-graphsync/message"
 	gsnet "github.com/ipfs/go-graphsync/network"
+	"github.com/ipfs/go-graphsync/notifications"
 )
 
 var log = logging.Logger("graphsync")

responsemanager/subscriber.go

@@ -4,11 +4,12 @@ import (
 	"context"
 	"errors"
 
+	"github.com/libp2p/go-libp2p-core/peer"
+
 	"github.com/ipfs/go-graphsync"
 	gsmsg "github.com/ipfs/go-graphsync/message"
 	"github.com/ipfs/go-graphsync/notifications"
 	"github.com/ipfs/go-graphsync/responsemanager/peerresponsemanager"
-	"github.com/libp2p/go-libp2p-core/peer"
 )
 
 var errNetworkError = errors.New("network error")

testutil/testnotifications.go

@@ -5,8 +5,9 @@ import (
 	"sync"
 	"testing"
 
-	"github.com/ipfs/go-graphsync/notifications"
 	"github.com/stretchr/testify/require"
+
+	"github.com/ipfs/go-graphsync/notifications"
 )
 
 type TestSubscriber struct {