changelog and AUTHORS for Frankie's fix

AUTHORS

@@ -36,3 +36,4 @@ Adam Lynch (https://github.com/adam-lynch)
 Michael Nisi (https://github.com/michaelnisi)
 Martijn Schrage (https://github.com/Oblosys)
 Paul Milham (https://github.com/domrein)
+Frankie O'Rourke (https://github.com/psfrankie)

CHANGES.md

@@ -8,11 +8,16 @@ Known issues:
 
 ## 1.8.1 (not yet released)
 
-(nothing yet)
+- [pull #386] Fix bad bug in rotation that could cause a crash with
+  error message "cannot start a rotation when already rotating"
+  (by Frankie O'Rourke). The bug was introduced in 1.8.0.
 
 
 ## 1.8.0
 
+Note: *Bad release.* An addition in this release broke 'rotating-file' usage.
+Use 1.8.1 instead.
+
 - [issue #370] Fix `bunyan -p ...` (i.e. DTrace integration) on node
   4.x and 5.x.
 - [issue #329, pull #330] Update the 'rotating-file' stream to do a file