[FIXED JENKINS-21159] Merged #663.

JENKINS-20618 diagnostics (also in 1.532.2) are on top of jzlib 1.1.3.

also made its display name localizable

Senseless for the state field to be protected when the enum used for its type is private: no subtype could use it anyway.

https://trello.com/c/NvZt4WXu/15-rawhtmlmarkupformatter

Fix autocompletion for items in folders

Revert 33db5445

plugin might erranously put null into the collection, so filter them out

Apache in its default configuration botches this: http://stackoverflow.com/a/9933890/12916

Conflicts:
	core/src/main/java/hudson/Functions.java
	core/src/main/java/hudson/markup/MyspacePolicy.java
	core/src/main/java/hudson/util/RobustReflectionConverter.java
	core/src/main/resources/lib/layout/layout.jelly
	war/pom.xml

This reverts commit 2d40b7e7.

This reverts commit b32d0e4f.

This reverts commit 6a31d6eb.

This reverts commit 037393c2.