[FIXED JENKINS-15340] Ask for confirmation before reloading config from disk, as it may be expensive.
First of all, /reload should require POST (also prevents XSS DoS attacks).
Adding <l:confirmationLink> to encapsulate a link that requires confirmation upon clicking.
Allowing a ManagementLink to request confirmation (also implying POST); could be used also for e.g. /quietDown.
Enhancing <l:task> to support confirmation as well, and honoring this in context menu items.

(Not touching the icon since I do not feel like playing with Inkscape; would be a nice pull request for somebody.)

Revert "[FIXED JENKINS-17451] "projects tied to slave" shows unrelated maven module jobs. shows TopLevelItem only."

This reverts commit 3a6de84f.
(Regressed JENKINS-15666.)
Conflicts:

	changelog.html

[FIXED JENKINS-8614] ProcessTreeTest fails on Windows 

[JENKINS-17351] won't fix - clarified help text
Thanks !

[FIXED JENKINS-10891] Page Title French Translation missing

Job" page

[FIXED JENKINS-17451] "projects tied to slave" shows unrelated maven module jobs. shows TopLevelItem only.

[FIXED JENKINS-14067] Polish localization breaks permalink descriptions

[FIXED JENKINS-15365] Invalid translation

Add exception handler for getEnvironmentVariables().

fixed invalid format string

[FIXED JENKINS-16942] SecretRewriterTest failure on Windows 7

Root cause seems to be broken serial form of FingerprintAction, probably caused by lazy loading.

Also provide proper overrides of ParameterValue.getShortDescription, rather than delegating to toString.

http://stackoverflow.com/questions/11896675/can-i-make-the-scm-polling-interval-for-jenkins-randomised/11898132#11898132