wesnoth: update to 1.18.7

[herbygillot]

Builds successfully, but it doesn't seem to start up on Tahoe, perhaps due to X11 limitations on that platform.

Verification

Have you

• followed our Commit Message Guidelines?
• squashed and minimized your commits?
• checked that there aren't other open pull requests for the same change?
• referenced existing tickets on Trac with full URL in commit message?
• checked your Portfile with port lint?
• tried existing tests with sudo port test?
• tried a full install with sudo port -vst install?
• tested basic functionality of all binary files?
• checked that the Portfile's most important variants haven't been broken?

[macportsbot]

Notifying maintainers:
@ryandesign for port wesnoth.

[ryandesign]

perhaps due to X11 limitations on that platform

Are there new X11 limitations on Tahoe?

[ryandesign]

When projects provide release distfiles, we should use them. We should not switch to automatically-generated git tarballs. This project's bz2 release files are smaller than GitHub's gz files, and release files do not suffer from the specter of changing unexpectedly in the future.

The github.tarball_from tarball line and the comment about switching it to archive were added to ports in bulk, and it was erroneous for them to have been added to this port since it overrode that with its own master_sites.

Suggested change

github.tarball_from archive

The master_sites and use_bzip2 lines below should be restored and checksums should be updated accordingly.

[ryandesign]

This list of dependencies was intended to be sorted alphabetically by port name. It's not entirely perfect, with readline being out of order, but let's not add to the problem here. lua54 sorts between libvorbis and pango. If you want to move readline to the right place that would be great too.

[ryandesign]

I would prefer not to change the formatting of the portgroup lines. Different maintainers might have different opinions of style, and this is the style I use.

Suggested change

	PortGroup github 1.0
	PortGroup cmake 1.1
	PortGroup app 1.0
	PortGroup github 1.0
	PortGroup cmake 1.1
	PortGroup app 1.0