online-node covered by test-cases

This caused a NullPointerException since newInstance was then called reëntrantly.
Adjusting NewInstanceBindInterceptor.processed handling to behave correctly in this case.

NodePropertyTest.invisibleProperty demonstrates that the fallback for onConvert must be onConvert, not instantiate, of the delegate.

CLI delete-node: correction of handling an exception occurred during execution when not enough rights are on

This reverts commit d00dc71b, reversing
changes made to 7ffefe19.

This reverts commit c55d5629.

- The previous check was to narrow.
- We now check on AccessControlled (which is implemented by Item)
- We now also check on Permission.READ (which is the generic read permission)

This should allow subtasks who's task may not be an Item to at least implement AccessControlled to alow visibility.

There remains an open question as to whether tasks that are not AccessControlled should ever be visible in the UI

(cherry picked from commit cf1fdf98)

So you can have something different than the first enum value as the default

(cherry picked from commit 04a874ac)

- The previous check was to narrow.
- We now check on AccessControlled (which is implemented by Item)
- We now also check on Permission.READ (which is the generic read permission)

This should allow subtasks who's task may not be an Item to at least implement AccessControlled to alow visibility.

There remains an open question as to whether tasks that are not AccessControlled should ever be visible in the UI

Should be uppercase to be consistent with the sign up link

- The MasterKillSwitchConfiguration was not available when you have clouds but no fixed slaves.
- The MasterKillSwitchConfiguration was not available when it was enabled but for a non-relevant configuration.

All Message_bg.properties files done - 654 strings.
Added MIT license to every new file.
Signed-off-by: NAlexander Shopov <ash@kambanaria.org>

Author:    Alexander Shopov <ash@kambanaria.org>

In addition to cluttering the namespace, unused imports generate
compiler warnings, introducing noise and obscuring more important
compiler warnings.  This change removes them.

(cherry picked from commit 88e287a8)

Most of the changes are now in remoting.

... in case plugins bring their own copies of those classes