[FIXED JENKINS-20597 JENKINS-21720] Improved config confirmation.

masters

likewise, avoid usage of "machine" because a physical machine could host 
several nodes.

Conflicts:
	changelog.html

[FIXED JENKINS-22674] Use JS to resize graph.

[FIXED JENKINS-22670] Less aggressive word breaking

This will make the load statistics graphs fit the window width.

As per discussion under PR #1194, it should go into separate plugin.

Update version of bundled Mailer plugin to 1.8 to avoid issues with olde...

Fix jenkins restart on Linux after a JRE system update

Daemon.getCurrentExecutable() use /proc/PID/exe to retrieve the used JRE. This link is broken when the target changes (ie after a JRE system update) because the kernel appends ' (deleted)' to the symlink. This patch uses the first argument of the command line (in /proc/PID/cmdline) instead.

[JENKINS-22631] The wrong (newer) build was sometimes being marked for fixing, depending on arbitrary directory listing order.

Trying to make SocketTimeoutException’s (as originally noted in 3ec7e562) not turn into test errors. (Works only in JenkinsRule, not HudsonTestCase.) Still have no clue as to cause.

[FIXED JENKINS-22631] Do not just warn about multiple builds with the same number; note this in the official problem list, and offer to fix it.