[JENKINS-18660] Restrict new public API member(s) from 5981ac4ed7b4b5c462a71ae186a133f7fe44e1a1 cherry-picked as 9bee3ba75d80115456732e9791ba9caab71c9042
[FIXED JENKINS-17713 JENKINS-14362]

Integrated the new version of Stapler that fixes them.

(cherry picked from commit bda95c67a6780ff0e6350f80d6f69cf0f61e737c)

Conflicts:
	core/pom.xml
[JENKINS-14362] Switch to jzlib for GZIP streaming.

(cherry picked from commit 3701a327a75d35e5d0e5795341cc55bb123a2007)

Conflicts:
	cli/pom.xml
	core/pom.xml
	maven-plugin/pom.xml
	plugins/pom.xml
	pom.xml
	test/pom.xml
	ui-samples-plugin/pom.xml
	war/pom.xml