Merge tag 'v2.4.1'

gerrit 2.4.1

* tag 'v2.4.1':
  Gerrit 2.4.1 ReleaseNotes
  Make logging events discardable, prevent NPE in AsyncAppender thread.
  Display proper error if file diff fails because content is too large
  Make async logging buffer size configurable.
  Make sure the "Object too large..." error is printed to the client

Conflicts:
	gerrit-httpd/src/main/java/com/google/gerrit/httpd/rpc/patch/PatchScriptFactory.java

Change-Id: Ifd6b7ba9d3b099576fab97d7d739beef7949d045
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>