TeXmacs: Upgrade to 1.99.11

Switch from qt4 to qt5.
Switch to CMake.

Add hacks to build with guile1.8.

CHANGELOG
=========

Several bug fixes (1.99.11).

Repositories for Debian and Ubuntu (1.99.11).

Many bug fixes (1.99.10).

Redesigned web site (1.99.10).

Extended Css stylability when exporting to Html (1.99.10).

New TeXmacs videos on web site (1.99.10).

Drag and drop for images (1.99.10).

Unification of beamer and poster styles, work in progress (1.99.10).

Automatic retrieval of artwork from texmacs.org (1.99.10).

New background patterns and pictures (1.99.10).

Experimental pattern effects (1.99.10).

Experimental Sparkle support under MacOS (1.99.10).

Experimental and partial support for Git as a versioning tool (1.99.10).

Experimantal Graph plug-in for graphs drawn by various external tools (1.99.10).

User interface for new features in educational styles (1.99.10).

Many bug fixes (1.99.9).

Similar spell checking widgets as for search and replace (1.99.9).

Improved educational styles (1.99.9).

Multiple choice lists (1.99.9).

A unified Graph plugin for Graphviz, Asymptote (1.99.9).

Import improvements from the FriCAS project (1.99.9).

Fixes and documentation for the Sage plugin (1.99.9).

Several bug fixes (1.99.8).

Support of binary packages for various GNU/Linux distributions, constructed using Suse OpenBuild services (1.99.8).

Several new algorithms for micro typography: roots, mathematical accents, etc. (1.99.7).

New style for posters (1.99.7).

Support for new ACM styles (1.99.7).

Various bug fixes (1.99.7).

New page breaker with better support for floating objects and footnotes (1.99.6).

Improved native Pdf generation based on Hummus (1.99.6).

Several new algorithms for micro typography: subscripts, superscripts, etc. (1.99.6).

Improved support for TeX Gyre fonts (1.99.6).

Various bug fixes (1.99.6).

(kamil)