This is a convenience module in order to have less import noise. It
re-exports the following:
a) Commonly used modules in full (Data.Foldable, Data.Applicative, and
so on); though only those that play nicely with each other, so that
XMonad.Prelude can be imported unqualified without any problems.
This prevents things like `Prelude.(.)` and `Control.Category.(.)`
fighting with each other.
b) Helper functions that don't necessarily fit in any other module;
e.g., the often used abbreviation `fi = fromIntegral`.
The X.L.Maximize layout modifier does not track whether the window it stores as
maximized does still exist. The X server reuses window IDs. As a result, I
was able to reproduce the following behaviour (e.g., by opening and closing
xpdf windows): Create a window, maximize it, close it without restoring it to
its normal state. Open a new window with the same window ID (e.g., an xpdf
window after just closing an xpdf window). The new window will open maximized,
which is not what one would expect. This patch addresses this problem,
removing the ID of the maximized window from the layout when the maximized
window is closed.
Despite myLayouts currently being more popular in examples, make
them all myLayout as in man/xmonad.hs to avoid mixing them in the
same module as was done a few places, leading to confusion for some users.
1. Move maximized window into the background when it's not focused.
2. Changed semantics so that maximizing a different window will
automatically restore the currently maximized window and maximize the
new one (previously this had to be done in two seperate steps).
