The main change here is that we need to delete LyX2.3.exe and
tex2lyx2.3.exe from the install directory, so they are not left
there (from previous, versioned installs).
- at the moment some files were in Unicode, some in CP1252 which can make unnecessary troubles
- remove an obsolete file
- update InstallerStructure.odg
- use https in URLs
- remove unused code
- use variables if possible
- LyX 2.3.x won't support Windows Vista because Qt 5.9 does not and other third-party programs will follow soon
- since NSIS 3 Unicode is allowed and even required.
The first installer for RC1 used the non-Unicode and therefore users of non-Latin script languages could not see readable text in the installer.
- also remove some JabRef residues
- the long awaited MiKTeX installer is available, this fixes many installation errors in LyX is installed for the first time (I will provide a new installer build as soon as I find more time)
- the installer now re-synchronize MiKTeX's package database before installing or updating LaTeX-packages. This assures that new packages and renamed packages can automatically be installed when they are missing (fixes bug #9370)
- update the list of LaTeX packages that have to be installed when LyX is installed via the bundle installer for the first time on a PC
- add support for Turkish spell-checking
- known problem: if LyX 2.0.x is installed and you install 2.1rc1, the .lyx file associations will not be updated but if LyX 2.1 is installed on a new PC the file associations work (work is in progress)
- update to new MiKTeX installer that fixes a bug with updating Packages
- don't ship cbgreek because it is so huge that its download would last 10 minutes or more
- the installer will now recognize an already installed 64bit MiKTeX
- the installer will still install 32bit MiKTeX for new installations because biblatex does not yet work with 64bit MiKTeX
