Stop tracking ConfigObj and instead rely on Debian's

Also parses distribution name and version from /etc/os-release,
/etc/lsb-release, or, if those files are unavailable for some odd
reason, our (slightly moved) config, as appropriate.
Merge pull request #41 from kernc/replace_configobj

Stop tracking ConfigObj and instead rely on Debian's
Fixed title in non-debug mode
Updated flags
Build-depends on python to make lintian happy
Language selection: when no translations are found, revert to English
Merge pull request #50 from monsta/patch-10

Build-depends on python to make lintian happy
Language selection: Sort by country by default
Merge branch 'master' of https://github.com/linuxmint/live-installer
Language selection: Added support for countryless locales (Esperanto is now 'eo' for instance, no longer 'eo_US')
Sort first by Country, then by Language

So that Chinese is the first language for China,
English for Great Britain, ...
Merge pull request #51 from kernc/sort_langs

Sort first by Country, then by Language
Install gettext.translation based on locale else lang else English
Fixed a pair of typos
Merge pull request #52 from kernc/gettext_translation

Use gettext.translation for locale else for lang else hardcoded English
Merge pull request #54 from iturralde/fix-typos

Fixed a pair of typos
i18n of program and slideshow

This commit includes:

* i18n of slideshow in po4a system (with Debian-recommended
  paths),
* locale translations in project locale directory
  /usr/share/locale/live-installer/,
* a .gitignore,
* somewhat simplified slideshow.py and related code,
* slides now enumerated HTML filenames in appropriate dir,
* somewhat improved and updated slideshow text, partially joined
  with ubiquity's mint-slideshow texts,
* only some four "fuzzy" translations per language (kind to
  your translators),
* complete 'sl' translation as the contributor speaks it perfectly,
* removed (any reason for) en_GB and en_AU -- lots of empirical
  evidence shows only two languages require additional locale
  specified: pt and zh,
* Makefiles for building/updating translations (target 'update'
  for updating program labels while slideshow is auto-updated on each
  build, just keep them *.po files in sync).
Added .po translations from launchpad