Fixing JENKINS-22750, regression introduced in JENKINS-21394

Use logging API correctly and introduce the ability to differentiate between the logging level for task execution taking too long

Cf.: https://github.com/jenkinsci/subversion-plugin/pull/83

[FIXED JENKINS-22938] SSH slave connections die after the slave outputs 4MB of stderr, usually during findbugs analysis

for LogRotator

Added missing target attributes to links and fixed some apostrophes.
Also incorporated jglick's suggestions on quoting with '{'.

See PR #1233 and discussion therein.

Fix NPE.

Add missing items in the French localization

For example, a user of ldap:1.4 saw ldap:1.9 as an update and though this was a problem, when it is not.

Given the current default of 'Escaped HTML', it makes no sense
to require users to 'Enable Security' to set up a less secure
alternative. So show it on the global security configuration page
on top level.

[FIXED JENKINS-22698] Add indicator that build queue is filtered.

[FIXED JENKINS-22720] Only call getAllItems in recursive ListView

In 1.509.2, probably due to a bad Groovy script:
java.lang.ClassCastException: hudson.model.Hudson cannot be cast to hudson.model.Slave
	at hudson.slaves.SlaveComputer.getNode(SlaveComputer.java:176)
	at hudson.slaves.SlaveComputer.getNode(SlaveComputer.java:92)
	at jenkins.model.Jenkins$9.compare(Jenkins.java:1547)
	at jenkins.model.Jenkins$9.compare(Jenkins.java:1543)
	at java.util.Arrays.mergeSort(Arrays.java:1270)
	at java.util.Arrays.mergeSort(Arrays.java:1282)
	at java.util.Arrays.mergeSort(Arrays.java:1282)
	at java.util.Arrays.mergeSort(Arrays.java:1282)
	at java.util.Arrays.mergeSort(Arrays.java:1282)
	at java.util.Arrays.mergeSort(Arrays.java:1282)
	at java.util.Arrays.mergeSort(Arrays.java:1282)
	at java.util.Arrays.sort(Arrays.java:1210)
	at jenkins.model.Jenkins.getComputers(Jenkins.java:1543)

Without that, it is impossible to use f:hetero-radio with descriptors with nonunique describable classes.