[IO-800] Fix back-incompatible change for PathUtils.deleteDirectory():

throw NoSuchFileException instead of IllegalArgumentException

Author: garydgregory

src/changes/changes.xml

@@ -81,6 +81,9 @@ The <action> type attribute can be add,update,fix,remove.
       <action dev="ggregory" type="fix" due-to="Gary Gregory">
         ReaderInputStream.Builder.setCharset(null) should reset to a default object, not throw an NPE.
       </action>
+      <action dev="ggregory" type="fix" issue="IO-800" due-to="Jan Høydahl, Gary Gregory">
+        Fix back-incompatible change for PathUtils.deleteDirectory(): throw NoSuchFileException instead of IllegalArgumentException #459.
+      </action>
       <!-- ADD -->
       <action dev="ggregory" type="add" due-to="Gary Gregory">
         Add CharSequenceInputStream.Builder.