Remove a couple string variables that were used only once and use the
string literal directly.

the other ones anyway. Should avoid XRender error in metafile test.

copying, moving and deleting drives.
Added a "Show/Hide Advanced" button in the drive edit dialog that
toggles the display of advanced options and resizes/moves controls.
Disable the 'autodetect' radio button in the drive edit dialog until
we have autodetection support.
Map window 'x' button to dialog close.

- panel switching via TAB doesn't use IsDialogMessage anymore
- focus is correctly set after main window activation (Alt+TAB etc),
  removed some focus-related bugs
- pressing ENTER or double-clicking a value edits it
- setting a value to an empty string is now allowed
- adding a new value starts rename automatically
- renaming a value doesn't move the cursor
- removed some unnecessary code (NM_RCLICK in ListView etc)
- right-click on tree view displays "New..." menu
- default values are treated like in Windows RegEdit (displayed even
  when they aren't physically present, can't be renamed or deleted)
- Polish translation had some weird characters added before Polish
  letters

containing an edit control. Fixes problems with subclassing the
richedit control.

- Fix upside down Gif.
- Add support for transparent Gif.

- Sync type testing data with the headers.

filesystems.

crash.

replacing a current value.

Fixes for rendering targets.

style of a button.

Removed files/file.c and include/file.h.

non-existent device returns ERROR_FILE_NOT_FOUND now.

the client is using it.
Get rid of the no longer used truncate_file request.