This should aid theme developers in developing plugins for Jenkins by adding
CSS classes and ID's to the dom. Developers can then use these to more
specifically target elements that they want.

For example, the "Console Output" was a raw <pre> tag embedded in a <table>.
Styling it required CSS like so:

    #main-panel > pre {

Sadly this will apply to any <pre> elements nested directly under the
"#main-panel" ID; there's no way to get more specific to the console output.

With this change you can style the console output by writing:

    .console-output {

Which is much more direct (and more efficient for browsers to render).

A similar treatment is applied to a number of elements in the jenkins UI.

[FIXED JENKINS-19251] Use hashes rather than modification time to determine if Maven agent JARs are up to date.

move environment in maven project to same location as in freestyle project

[fixed JENKINS-19740] Added postCheckout for SCMs

- Adds an option to the Global Security screen to hide the remember me checkbox
- A crafty user could use their browser to re-insert the form field and thereby get Jenkins to set the
  remember_me cookie on their browser, but this option should cover the 99.9% case.

This reverts commit 647695e2.

This reverts commit 647695e2.

[FIXED JENKINS-19613] 49c731fc made PROXY_HEADER static under the assumption that XStream would treat that like a missing field.
Unfortunately it threw an error instead, breaking startup; fixed by renaming the constant.

[FIXED JENKINS-19753] Add view link to job artifacts list

Add a "view" link to a job's Last Successful Artifacts list, just like
an individual build's Build Artifacts list has.

[FIXED JENKINS-19749] Add a -f option for following the build without passing interrupts through to the build

[FIXED JENKINS-19739] When installing a plugin and the needed dependencies have compatibility issues, warn the user

[FIXED JENKINS-19736] Installing a plugin with optional dependencies doesn't upgrade the optional dependencies when needed

[FIXED JENKINS-12629] Using jenkins-cli connecting to HTTPS port fails due to hostname mismatch in certificate.

- NoCheckTrustManager needed to implement X509TrustManager not just plain TrustManager

[JENKINS-16502] Permission to see an executor/slave

- This is an initial version of the feature.
- The information about slave names is still exposed via label autocomplete