Some more value fixing/support double-quoted commands in extension.
Functionality for printing command help.

Reviewed-by: kh1

Reviewed-by: Roberto Raggi

Use the editor's displayName for the window title.
Also there were missing change signal emissions in setDisplayName
implementations.
Moves the actual handling of the window title from Session to
EditorManager (so it now is also done for the hypothetical case of no
project explorer plugin).

Task-number: QTCREATORBUG-3207

We didn't watch the symbolic link itself before, only the final link
target. We are watching the symbolic link and the final link target now.
Ugly hack: We need to work around QTBUG-15522. The inotify and kqueue
based file system watcher engines (Linux + Mac) don't report changes to
symbolic links. The workaround is to use the polling engine *only for
the links themselves*. The only way to force the use of the polling
engine is by using the auto test hook in QFileSystemWatcher.

Reviewed-by: hjk

Reviewed-by: hjk

Reviewed-by: Roberto Raggi

Task-number: QTCREATORBUG-3225

Regression introduced by dcd1876d.

"xyz", "st", and "rgb" are more likely to be what the user
wants than things like "aaar" and "abbb", so sort the
completion list to move common swizzles to the top.

Reviewed-By: Jens Bache-Wiig

can now pluginto any host via ssh.
define QTC_LLDB_GUEST=/some/script in the env
where script is a wrapper that does ssh, or whatever you need

Mis-merge?

There are probably very little use cases where you want to start
from a clean environment, and there is no such thing as a Build
Environment (although we magically add some toolchain settings to
the environment).

Task-number: QTCREATORBUG-2600