Checks for overflows for client max width and height

respect size hints

inline unmaplayersurface() into unmaplayersurfacenotify()

unmap signal is guaranted to be emitted before destroy signal
so is useless checking if it is mapped at destroy

avoid layer surface popups appearing below x{dg,wayland} clients

unconstrain layer shell popups from monitor size

unconstrain other popups from monitor usable area

use LayerSurface.mon when possible

unconstrain layer shell popups

also unconstrain popups from monitor's usable area

don't set `c->isfullscreen` to zero

calloc initializes all fields to zero

Merge pull request #257 from fauxmight/bar_options

Add known dwl status bar options to README

Add known dwl tag status bar options to README.md

move ugglyness to client.h

remove unneeded check in focusclient()

Merge pull request #251 from gwnichol/fixinstall

Fix make install while files are in use

Merge pull request #247 from Humm42/xkboptions

initialize xkb_rules.options to a null pointer

kill child process in cleanup()

Fix make install while files are in use

When the dwl executable is in use, cp fails without the -f flag.

POSIX defines this flag with:
> If a file descriptor for a destination file cannot be obtained,
> as described in step 3.a.ii., attempt to unlink the destination
> file and proceed.

add some blank lines

add click method configuration option

Add the libinput configuration option to choose between Software Button Areas and Clickfinger

add $(LIBS) to $(LDLIBS)

fix link failure with --as-needed