* New versions of dependencies
* Improved MiKTeX detection
* Remove language selection during installation (this is now set in the LyX preferences)
* Remove hacks from LyXLauncher that are no longer needed with gettext 0.18
* Clean up some code that is no longer in use
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_6_X@34916 a592a061-630c-0410-9148-cb99ea01b6c8
* use nsDialogs instead of InstallOptions for custom wizard pages, faster & easier to customize
* upgrade to Modern UI 2
* use MultiUser.nsh to support multiple installation modes (all users / current user) in a much more simple way
* use LangFile.nsh for the language files, again less scripting required
* simplified installer structure
* more meaningful variable names
* more comments
* minor fixes
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@24062 a592a061-630c-0410-9148-cb99ea01b6c8
