Update to use SHM to avoid sending large images over the protocol

update readme

Upgrade dependencies

GLX

a

fullscreen for x11

add x11 stuff

x11

use a unique filename

add PKGBUILD for arch repos

Merge pull request 'Corrects the dependency list.' (#2) from remexre/leanshot:develop into develop

Reviewed-on: https://git.mzhang.io/michael/leanshot/pulls/2

Corrects the dependency list.

bump version to 0.5

Switch to using pid checking instead

Update dependencies

Don't allow 2 processes of leanshot to run at the same time, using a
lockfile.

add traces

add package name

Add link to AUR

bump up  version