[JENKINS-20509] Move doCheckJobName to View

[JENKINS-33772] ID was not sufficiently unique for SezpozModule

[FIX JENKINS-33799] Enforce correct icon size in list view

Copy item in folder fixes

As suggested by Tom, removing the tag name restriction
and correcting the xlg class name.

See the Icon class for more details

Autocomplete on New Item - Copy from

Conflicts:
	core/src/main/resources/hudson/model/View/newJob.jelly

[FIXED JENKINS-33772] ID was not sufficiently unique for SezpozModule; use an ID based on the actual annotated element.

Moving DirectlyModifiableTopLevelItemGroup.canAdd check to a higher UI level, in ViewDescriptor.doAutoCompleteCopyNewItemFrom.

newJob link should be offered according to Item.CREATE permission on the ViewGroup (e.g., Folder), not necessarily root (Jenkins).

Conflicts:
	cli/pom.xml
	core/pom.xml
	pom.xml
	test/pom.xml
	war/pom.xml

Fix missing space in log message

Be quiet

Fix the width & height of the icon via CSS.

Previously, we were relying on the actual image being served as a
correct size. This is fine for icons we ship in Jenkins, but when
plugins use avatars as icons, those images might not come in the correct
size.