- This is a modified and hopefully improved version of Raph Goer's patch.

  MDCLevelFilter was renamed as DynamicThresholdFilter.
  
  In particular, the syntax for configuring a DynamicThresholdFilter
  is much shorter and convenient than previously. Here is an example:.
  
	<turboFilter class="ch.qos.logback.classic.turbo.DynamicThresholdFilter">
		<Key>userId</Key>
		<DefaultThreshold>ERROR</DefaultThreshold>
		<MDCValueLevelPair>
			<value>user1</value>
			<level>INFO</level>
		</MDCValueLevelPair>
		<MDCValueLevelPair>
			<value>user2</value>
			<level>TRACE</level>
		</MDCValueLevelPair>

	</turboFilter>

  See also turboDynamicThreshold.xml.

  However, I am not 100% satisfied with the semantics of
  DynamicThresholdFilter. Expect it to change according to
  feedback received on the mailing lists.

- added support for "valueOf" convention.
 Joran now assumes that any class which has a static
 valueOf method taking a String as an argument can
 be built from a string. 
 
 Level, Duration and FileSize classes follow this convention.
 
 This patch is indirectly related to LBCLASSIC-53

  hopefully clearer.
- Joran now support complex types without the need to declare their class
  in the XML element, if the complex type can be instantiated unequivocally.
  This can make config files shorter.

No commit message

- added link to Lilith

Escaping is implemented selectively. Cerated a new interface called EscapeUtil.
In particular, FileNamePattern now uses AlmostAsIsEscapeUtil.

See also http://jira.qos.ch/browse/LBCLASSIC-56

  features of the Profiler API

 Code responsible for extracting the string array has been moved into 
 the ThorableToStringArray class. This allows StatusPrinter code
 (in lb-core) to compute string representation of throwables without creating
 a ThrowableInformationConverter (in lb-classic).
 

 Code responsible for extracting the string array has been moved into 
 the ThorableToStringArray class. This allows StatusPrinter code
 (in lb-core) to compute string representation of throwables without creating
 a ThrowableInformationConverter (in lb-classic).
 

- ProfilerRegistry instance are intended to help developers track profilers

 Problem reported by Julia Hu [1].
 
 [1] http://www.qos.ch/pipermail/logback-dev/2008-May/002506.html

 see also 

  http://bugzilla.qos.ch/show_bug.cgi?id=55
  http://bugzilla.qos.ch/show_bug.cgi?id=149
  

- copyright is 2000 to 2008
- other docs changes