[FIXED JENKINS-11209] clarify the notification sender email vs system adm

Connect and Disconnect permissions for slaves

Merge remote branch 'ohtake/resizable-codemirror' into 11132

updated changelog

made ChangeLogSet a WeakReference to reduce heap usage

JENKINS-10913 Add support for maven-android-plugin integration test
Thanks !

Earlier versions of the plugin (2.x and prior to 3.0.0-alpha6) do not produce
test reports and also do not accept the same configuration properties. Ignore
those earlier versions.
Also accept the new plugin name android-maven-plugin (changed to fit with
Maven plugin naming guidelines).

[JENKINS-9577] Fix last modification timestamp after unzip

[JENKINS-11151] HTTPS on port 80 makes Jenkins infer his URI incorrectly

Weather icons improvements

%changelog needs to follow a certain format.

In this way we can keep both new and old happy.

gwt-maven-plugin < 1.2 compliance