wmacpi: Install manpages to PREFIX/share/man/man1.

By default, the manpages are installed in PREFIX/man/man1, which does not
conform to the Filesystem Hierarchy Standard.  This patch installs them
correctly to PREFIX/share/man/man1.

Based on the patch from Debian:
http://sources.debian.net/src/wmacpi/2.2~rc5%2Bds-1/debian/patches/install_manpages_to_usr_share.patch/
wmacpi: Rename acpi to wmacpi-cli.

To avoid conflict with acpiclient (http://sourceforge.net/projects/acpiclient/),
which also provides an executable binary named acpi, the acpi binary included
with wmacpi is being renamed to wmacpi-cli.

Based on the patch from Debian:
http://sources.debian.net/src/wmacpi/2.2~rc5%2Bds-1/debian/patches/rename_acpi_to_wmacpi-cli.patch/
wmacpi: Respect CFLAGS and LDFLAGS.

Allow additional flags to be appended to CFLAGS and/or LDFLAGS.

Based on the patch from Debian:
http://sources.debian.net/src/wmacpi/2.2~rc5%2Bds-1/debian/patches/fix_compiler_flags.patch/
wmacpi: Remove VCS files.
wmacpi: Restore FSF address and GPLv2.

The Free Software Foundation's address was updated in the wmacpi copyright
notice in commit 792a5d2 and the GNU General Public License version 2.0 text
was updated in commit 31c2845, but these were overwritten when later versions of
wmacpi were added to the repository.
wmacpi: Update bug report email address.
wmacpi: Bump to version 2.2.

Five years is long enough to have a release candidate, I think.  :)
Import upstream version 2.2.
debian/patches: Remove patches; applied upstream.
debian/control: Update Homepage.
debian/copyright: Update Upstream-Contact and Source.
debian/watch: Update with new location.
debian/rules: Add get-orig-source target.
README.source: Remove file; changes now upstream.
debian/changelog: Draft for version 2.2-1.
debian/control: Remove versioned dependency from libdockapp-dev Build-Depends;
no earlier version earlier than 1:0.5.0 is available in Debian.