Helps packages that use pkgconfig to find libcap when installed in OpenWrt

Signed-off-by: Rosen Penev <rosenp@gmail.com>

This file is needed to enable libcap support in other packages,
such as iproute2's ip-full.

Signed-off-by: Alin Nastac <alin.nastac@gmail.com>

Signed-off-by: Deng Qingfang <dengqf6@mail2.sysu.edu.cn>

Minor adjustments to Makefile.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

* add option to install additional executables - capsh, getcap, getpcaps, setcap
* capsh can be configured to execute a different shell rather than /bin/bash

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>

add license tag

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

fix Makefile chmod (644)
replace MD5SUM with HASH
add PKG_MIRROR_HASH when PKG_SOURCE_PROTO:=git

(PKG_SOURCE_PROTO:=svn tarballs are not reproducible for now)

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

Update libcap to upstream release 2.25
Since the libattr thing was dropped upstream in [1] it is also removed here.
Then, to overcome an issue in cross-compiling [2], set the Make parameter
according to [3].

Take maintainership of this package.

Signed-off-by: Paul Wassi <p.wassi@gmx.at>

[1]:
http://git.kernel.org/cgit/linux/kernel/git/morgan/libcap.git/commit/?id=85f38a573fc47472ab792e813b6f6b6f0b1df112

[2]:
libcap: progs/Makefile:30 executes the cross-compiled binary on the host

[3]:
libcap: Make.Rules: comment from lines 74-81

Remove hardcoded URL and use alias instead.

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>