mame and rom-tools: Update to 0.148u2 with several change.

* Update mame and its family to 0.148u2
* Let homebrew decide which compiler compiling mame and its family. Note
  that mame's LD is abnormal.
* Remove redefined header path.
* Change rom-tools homepage. As both mame and mess use the same tools
  and mame has a document page related this.
* Fix removed rom-tools target.
* Add ldplayer for rom-tools.

Closes #44.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
xboard 4.7.1

Closes #54.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
nethacked 1.0

Closes #48.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
inform6: add HEAD build, fix overwritten i6 libs

Fixes stable's build process overwriting the inform6 library
files with differently-cased symlinks.

HEAD is not affected, since upstream has fixed this:
https://github.com/DavidGriffith/inform6unix/pull/1

Closes #46.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
openttd 1.3.0

Upgraded to the latest version of OpenTTD, an open source implementation
of the classic Transport Tycoon Deluxe game.

  * OpenTTD upgraded to version 1.3.0
  * The supporting graphics library, OpenGFX upgraded to version 0.4.6.1

Other than that: Nothing changed from the formular that installed the
1.2.3 version

Closes #45.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
cataclysm 0.5

Closes #43.
glulxe 0.5.0

Closes #42.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
frobtads 1.2.3

Closes #55.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
stone-soup 0.12.1

Closes #58.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
wesnoth 1.10.6

Closes #52.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
stone-soup 0.12.2

Just learned that a newer stable version is available

Closes #59.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
freeciv: fix audit warning
brogue 1.7.2

Closes #63.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
GNU Chess 6.0.3

Closes #64.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
einstein 2.0

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
openttd: fix caveats

Closes #66.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
mame & rom-tools 0.149u1

Closes #60.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
stone-soup 0.12.3

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
stone-soup: fix CLT-only builds

Closes #76.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
brogue 1.7.3

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>