This commit removes the File -> Remote menu entirely. The only menu item
that was left was the Save to Remote item which is replaces by a button
in the remote dock.
The button is only enabled when a database file is opened and the user
has logged in using a certificate.
Clicking the button opens the same dialog and performs the same actions
as before. The only difference is that we don't use the first client
certificate - no matter which one it is - but instead use the client
certificate that was used for logging in.
Remove the browse mode ("Remote" / "Local") combo box from the remote
dock as it's currently not used for anything and probably won't be used
for the time being. So before it causes any confusion as to what it does
we should probably just get rid of it for now.
This adds a new dock to the main window that contains all the remote
functionality (or is supposed to contain it all in the future).
It also adds a directory browsing feature which allows you to browse
through the folders and files on the dbhub server.
By double clicking a database you can download and open it. The Open
Remote menu action isn't needed anymore and has been removed.
This also fixes an issue with pushing databases where, after sending the
file is completed, the save dialog was opened.
Note that this is still WIP and is far from polished.
