[FIXED JENKINS-22674] Use JS to resize graph.

This will make the load statistics graphs fit the window width.
Merge pull request #1198 from daniel-beck/JENKINS-22674

[FIXED JENKINS-22674] Use JS to resize graph.
Noting #1198 and #1195
Merge branch 'master' of github.com:jenkinsci/jenkins

Conflicts:
	changelog.html