The "it.value" don't exist, so we need to set the defaultParameterValue. 

It help me display correctly parameter for my multilauncher plugin. 
Note that other ParameterDefinition use the default value to display parameter, so IMO it is safe to do this.

use more explicit method name
use formattedDescription for all parameter types

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@16843 71c3de6d-444a-0410-be80-ed276b4c234a

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@15081 71c3de6d-444a-0410-be80-ed276b4c234a

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@13655 71c3de6d-444a-0410-be80-ed276b4c234a

Merged revisions 9727,9739,9765-9766,9927,10332,10334-10338,10340,10416,10421,10553,10839-10845,10876 via svnmerge from 
https://www.dev.java.net/svn/hudson/branches/tom

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  r9727 | huybrechts | 2008-05-31 12:49:18 -0700 (Sat, 31 May 2008) | 3 lines
  
  Issue 1659
  - cleaning up static Trigger, Hudson instances
  - resetting commons-logging
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  r9739 | huybrechts | 2008-06-01 12:05:51 -0700 (Sun, 01 Jun 2008) | 1 line
  
  #1770 catching and logging InstantiationError
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  r9765 | huybrechts | 2008-06-02 11:34:45 -0700 (Mon, 02 Jun 2008) | 1 line
  
  project-based security: fixed a new isAdmin call
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  r9766 | huybrechts | 2008-06-02 11:35:27 -0700 (Mon, 02 Jun 2008) | 1 line
  
  "theInstance = null" caused some reloading problems
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  r9927 | huybrechts | 2008-06-07 15:31:20 -0700 (Sat, 07 Jun 2008) | 8 lines
  
  Initial commit of parameterized builds. Provided functionality:
  - users can define parameters per project (only string paramters for now)
  - if a project has parameters, the 'build' button will redirect to an input page
  - parameter values can be used as ${variable} in Ant, Maven and CommandInterpreter builders
  - after the build, parameter values can be viewed in a separate page
  - tasks for parameterized builds are persisted in the queue over restarts
  - queue persistence is now in XML (with backwards compatibility for text format)
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  r10332 | huybrechts | 2008-06-23 05:32:45 -0700 (Mon, 23 Jun 2008) | 1 line
  
  made EmbedderLoggerImpl public for use in plugins
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  r10334 | huybrechts | 2008-06-23 05:48:10 -0700 (Mon, 23 Jun 2008) | 1 line
  
  [HUDSON-1914] additional parameter types (job, run), bugfixes
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  r10335 | huybrechts | 2008-06-23 05:49:10 -0700 (Mon, 23 Jun 2008) | 1 line
  
  [HUDSON-1573] initialize servlet filters
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  r10336 | huybrechts | 2008-06-23 05:52:14 -0700 (Mon, 23 Jun 2008) | 1 line
  
  [HUDSON-1915] onStarted onevent
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  r10337 | huybrechts | 2008-06-23 06:07:32 -0700 (Mon, 23 Jun 2008) | 4 lines
  
  [HUDSON-1504] basic ui for job-based access control
  
  This allows assigning permissions per user and per job.
  It is still possible to provide defaults using a global matrix.
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  r10338 | huybrechts | 2008-06-23 06:18:13 -0700 (Mon, 23 Jun 2008) | 3 lines
  
  [HUDSON-1504] basic ui for job-based access control
  
  adding it to the list...
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  r10340 | huybrechts | 2008-06-23 07:23:12 -0700 (Mon, 23 Jun 2008) | 1 line
  
  [HUDSON-1504] fix compile error
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  r10416 | huybrechts | 2008-06-25 01:13:11 -0700 (Wed, 25 Jun 2008) | 1 line
  
  initial commit staging plugin: supports doing a maven release to a staging repository, serving that repository for Hudson, and uploading it on demand
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  r10421 | huybrechts | 2008-06-25 12:32:06 -0700 (Wed, 25 Jun 2008) | 1 line
  
  [HUDSON-1954] initial commit jbpm plugin and staging workflow example
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  r10553 | huybrechts | 2008-07-01 14:13:57 -0700 (Tue, 01 Jul 2008) | 1 line
  
  moving registration for parameter definition out of registered class
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  r10839 | kohsuke | 2008-07-15 13:48:05 -0700 (Tue, 15 Jul 2008) | 6 lines
  
  Making a few adjustments in preparation of merging back to the trunk.
  
  - doc updates
  - added QueueTaskFilter as a plain delegation implementation to simplify ParameterizedProjectTask.
  - renamed ParameterDefinition.newInstance(...) to createValue, to avoid having two newInstance methods
    in this part of the system that does different things
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  r10840 | kohsuke | 2008-07-15 13:51:16 -0700 (Tue, 15 Jul 2008) | 1 line
  
  Hudson's coding convention is to use WS and no TAB.
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  r10841 | kohsuke | 2008-07-15 14:34:37 -0700 (Tue, 15 Jul 2008) | 2 lines
  
  - making ParameterValue an abstract class to allow evolution without breaking plugins in the future
  - tweaked the UI a bit so that parameterization don't get too much visibility.
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  r10842 | kohsuke | 2008-07-15 14:49:35 -0700 (Tue, 15 Jul 2008) | 2 lines
  
  improving the UI a bit.
  Added an icon
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  r10843 | kohsuke | 2008-07-15 15:08:28 -0700 (Tue, 15 Jul 2008) | 1 line
  
  adding help
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  r10844 | kohsuke | 2008-07-15 15:10:42 -0700 (Tue, 15 Jul 2008) | 1 line
  
  TAB->WS
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  r10845 | kohsuke | 2008-07-15 15:44:47 -0700 (Tue, 15 Jul 2008) | 2 lines
  
  - Use HTTP status code to notify the automated clients that the build triggering failed.
  - Overload the "/build" URL to render the parameter entry form.
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  r10876 | kohsuke | 2008-07-18 13:52:51 -0700 (Fri, 18 Jul 2008) | 10 lines
  
  Giving more hooks to ParameterValue to affect a build
  
   - abstracting the variable substitution process so that the actual syntax for marking
     variables (e.g., %VAR% vs ${var} vs #{xyz}) and the actual resolution process are
     orthogonal.
  
   - parameter values can now contribute BuildWrapper to a build.
  
   - parameter values can now contribute environment variables to a build.
........


git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@10950 71c3de6d-444a-0410-be80-ed276b4c234a