Convert them to static, named classes.

Add localization for time days

* Collect information on Accept-Language header values

* Skip null values

* Address review feedback, do not record while disabled

* Address FindBugs problem

* Add telemetry for Stapler dispatches

* Add TODO

* Released version of Stapler

Adapt to stapler/stapler#149

warn user when deprecated Secret#toString() is being used

Signed-off-by: NNicolas De Loof <nicolas.deloof@gmail.com>

[JENKINS-51805] - Winstone 5.1: Update Jetty to 9.4.12 in order to pick up fixes towards Java 11 support

The properties file naively assumed that leading spaces would be honored.
-- They are not. To get some indentation, one needs to escape a space first.

Further, for no particular reason, the last paragraph had a hard wrap.

Finally, since this commit has to reindent the entire block, fix the alignment of the `:`s
for most of the options.
(-auth is a mess and should be rewritten)

[JENKINS-53863] - BuildTriggerTest should use Maven 3 and recent Maven plugins

Introduce smoke-test profile and update documentation

* Add i18n support

* Add original localize file.

* [JENKINS-53792] - Update CLI help to advertise usage of credential files

* [JENKINS-53792] - Use redirect as suggested by @daniel-beck

Minor telemetry improvements

Update parent POM to 1.49 to pick-up updates for JDK11 build flow

* [JENKINS-53792] Add env vars for auth option

* [JENKINS-53792] Fix encoding after first commit

* [JENKINS-53792] Better readability

* [JENKINS-53792] Refactor and use the ApiToken

* [JENKINS-53792] Fix encoding

* Reduce memory footprint for the plugin info by presizing hashmaps to reduce waste for small maps and interning commonly duplicated plugin strings

* Replace duplicated empty string arrays with the one in MemoryReductionUtil

* Fix interning where strings are null

* Fix to deal with the fact that we directly mutate dependency fields for UpdateSite, sigh

* Reduce starting HashMap size for some hashmaps likely to be empty or tiny

* Cleanup per review comments

* Trim some extra waste out of the UpdateSite warnings

* Fix count of optional dependencies

* Move predicates for dependency matching to top-level static final field so they are not duplicated

[JENKINS-48516] Uniquify radio button names before setting initial visibility

Fixed AdministrativeMonitor JavaDoc: replaced div class "warning" with "alert alert-warning"