Allow LogConfiguration to be used with GWTMockUtilities.disarm()

Also fixes a small error in HtmlLogFormatter.

Fixes issue 8050 and issue 5447

Change-Id: Ia52e4ce2dcd2f4c750534d53bcb17cd842b87e69
Review-Link: https://gwt-review.googlesource.com/#/c/2111/

Review by: mdempsky@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@11551 8db76d5a-ed1c-0410-87a9-c151d255dfc7
4 files changed