Improvements to the Wordpress Update Process

[manski]

I've some suggestions on how to improve the update process (usability). I guess its not enough for separate tickets so I'm filing them together.

• When updating Wordpress, a plugin or a theme, I'm being asked for the password to the FTP server. You should add a note there that the password won't be stored in the database. I guess many/some users are uncomfortable with storing their FTP password in the database and won't use the "update tool" for this reason.
• Rename the button "Update Automatically" to "Update Wordpress". "Update Automatically" sound like "Update now and update automatically in the future when a new Wordpress (and also plugin/theme?) version is available." This should make the button's function a little bit clearer.

[dd32]

In 25071:

Add a note that the FTP Password will not be stored on the server to the FTP credentials page. Fixes #16492

[dd32]

We now use the text "Update Now" and similar strings, "update automatically" is no longer an action the user performs.

Adding a note about the password not being stored made sense.