Log Message:
Update multimedia/dvdauthor to 0.7.0

Pkgsrc changes:
- Add LICENSE

Upstream changes:
0.7.0: 2010 October 23

* Reworked subtitle file reading so it can now deal with encodings like UTF-16
* Default encoding for subtitle files is no longer ISO-8859-1, but taken from
user's locale
* Add fontconfig support following a patch by Nicolas George
* Remove dvdauthor config files and make command line -o option take precedence
over XML dest attribute.
* Video format no longer has hard-coded default to NTSC, unless you invoke
configure with --enable-default-video-format=NTSC. You can also configure with
--enable-default-video-format=PAL to default to PAL.
* Implement configuration of default video format as per the proposal at
<http://create.freedesktop.org/wiki/Video_Format_Pref>.
* File names are no longer converted to locale encoding, unless you invoke
configure with --enable-localize-filenames.
* You can now specify fill and outline colours and outline thickness for text
subtitles.
Colours can be specified in additional ways, including by name and in HSV space.
* You can now also specify a shadow offset and colour for text subtitles
* Allow non-title PGCs in a titleset
* The VM language now allows C-style comments, as well as CDATA sections
* Add --nomux and --nodvdauthor-data options to spumux (thanks to TED for
sponsoring this)