Change notice format

**Changesets**

Before:
```
Notice(changeset): Benoitz commited r83188 https://example.com/projects/a/repository/revisions/83188
Notice(changeset):    » (17134) merge to startpage/prod
Notice(changeset):    » For action 17134 https://example.com/issues/17134 in Hop
Notice(changeset):    » Blahblahblah
```

After:
```
Notice(changeset): New changeset by Benoitz for issue "Blahblahblah" in Hop
Notice(changeset):    » (17134) merge to startpage/prod
Notice(changeset):    » https://example.com/issues/17134 (issue)
Notice(changeset):    » https://example.com/projects/a/repository/revisions/83188
```

**New issues**

Before:
```
Notice(issue): New action 17330 https://example.com/issues/17330 in Hop
Notice(issue):    » Blihblihblih
Notice(issue):    » by Benoitz for Benoitz
```

After:
```
Notice(issue): New action by Benoitz for Benoitz in Hop
Notice(issue):    » Blihblihblih
Notice(issue):    » https://example.com/issues/17330
```