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`.
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.
As I said in order to have a CombinedLayout type instace of
LayoutClass and a class for easily writing pure and impure combinators
to be feeded to the CombinedLayout together with the layouts to be
conbined, there's seems to be the need to change the type of the
LayoutClass.description method from l a -> String to l a -> X String.
Without that "ugly" change - loosing the purity of the description
(please note the *every* methods of that class unless description
operates in the X monad) - I'm plainly unable to write something
really useful and maintainable. If someone can point me in the right
direction I would really really appreciate.
Since, in the meantime, PerWorkspace, which has its users, is broken
and I broke it, I'm reverting it to it supposedly more beautiful
PerWorkspac [WorkspaceId] (Maybe Bool) (l1 a) (l2 a) type.
