```-----
Merged revisions 32975,33588,33697,34342 via svnmerge from 
https://www.dev.java.net/svn/hudson/branches/downgrade
```

.....
  r32975 | kohsuke | 2010-07-16 21:27:59 +0200 (Fri, 16 Jul 2010) | 1 line
  
  committed my partially modified version
........
  r33588 | dienomight | 2010-08-05 09:42:36 +0200 (Thu, 05 Aug 2010) | 13 lines
  
  Added getBackupVersion (UpdateCenter)
  downgrade button now shows version of backup war file
  
  Added HudsonDowngradeJob (UpdateCenter)
  downgrading process is works now as HudsonUpgradeJob
  
  Changed rewriteHudsonWar (Lifecycle) 
  backup file is deleted when downgrading
  
  hudson/model/Hudson/downgrade_success.jelly is no longer necessary
  
  Changed rewriteHudsonWar(WindowsServiceLifecycle)
  hudson run as windows service creates backup during upgrading
........
  r33697 | dienomight | 2010-08-11 17:09:48 +0200 (Wed, 11 Aug 2010) | 8 lines
  
  committed changes:
  "plugins downgrade functionality"
  added: 
  * PluginDowngradeJob in UpdateCenter
  * getCanDowngrade & getBackupPath & getBackupVersion in PluginWrapper
  * additional "previous version" column in installed.jelly (PluginManager) with downgrade button (when it's possible to downgrade)
  * doDowngrade in PluginManager
  * deployBackup in UpdateSite
........
  r34342 | dienomight | 2010-09-03 09:52:13 +0200 (Fri, 03 Sep 2010) | 12 lines
  
  Code improvements: 
  jelly files:
  *I put text inside ${%} so it would be available for translation.
  UpdateCenter: 
  *changed getCanDowngrade to isDowngradable
  *getBackupVersion use JarFile class to get version of .war backup
  PluginWrapper:
  *changed getBackupPath to getBackupFile
  *getBackupVersion use JarFile class to get version of plugin backup
  PluginManager:
  *changed condition in doDowngrade method
........


git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@34543 71c3de6d-444a-0410-be80-ed276b4c234a

(with "Details" link to see them), to keep this page shorter and make it easier
to find the latest update jobs when retrying after failure.  Also scroll to
bottom of page when it first loads, for the same reason.


git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@30680 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@13723 71c3de6d-444a-0410-be80-ed276b4c234a

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@12888 71c3de6d-444a-0410-be80-ed276b4c234a

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@11326 71c3de6d-444a-0410-be80-ed276b4c234a

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@9890 71c3de6d-444a-0410-be80-ed276b4c234a

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@9889 71c3de6d-444a-0410-be80-ed276b4c234a

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@9415 71c3de6d-444a-0410-be80-ed276b4c234a

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@9396 71c3de6d-444a-0410-be80-ed276b4c234a

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@9381 71c3de6d-444a-0410-be80-ed276b4c234a

- Tweaked the NodeMonitor abstraction a little bit.


git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@6922 71c3de6d-444a-0410-be80-ed276b4c234a

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@969 71c3de6d-444a-0410-be80-ed276b4c234a