GitLab

* do not print legend stars if only one Y axis
* fixed bug with too small legend on horizontal print
* divided displaying legend into max 2 (vertical print)
    or 3 (horizontal print) columns
* added auto-truncate of param name to avoid text
    collisions between columns in legend

* changed unittests to integration_tests
* turned off testing while building packages as i2smo need whole
  environment prepared
* changed execution script to python3
* changed dependencies

* python2 to python3 change
* added first tests

* switched from python2 to python3 in dmn2sgml
* force to use utf-8 encoding inside dmn2sgml script
* converting generated daemons.sgml to iso-8859-2
* added needed python3-dev dependency
* force to use gtk3 on focal

* control changes
* fix truncating sets names
* unify stretch and focal code

szarp-python3-transition is temporary dependency, Ubuntu Focal Fossa
(and incoming Debian Bullseye) has no support for python2 packages and
SZARP for previous distributions is not ready for python3 usage. SZARP
will be continuously ported to python3 and python2 dependencies should
be removed soon (as well as szarp-python3-transition package). Buster
has support for both python2 and python3 packages but it has conflict
with libcgal-dev (Focal Fossa too). Relationship between libcgal-dev
and szarp-python3-transition package allows to build SZARP on buster
(build without CGAL is allowed but removes XYZ graphs functionality).

* small fixes
* fix build-depends
* remove truncate, but resize wxChoice
    because truncated set's names makes segmentation fault with Ctrl+F

This reverts commit b47b698b.

* swapped reading 1 & 2 byte

during add draws to new draws set.

* fix
* compiler version ifdef
* moved compiler.h

* fixed loading polish chars from cmd
* fixed saving user reports containing polish chars to xml file
* fixed loading user reports containing polish chars from xml file

+ removing pics from documentation "oszarpie" removed empty html dir which broke the buildsystem

+ removed outdated content

+ on Ubuntu Xenial cmake . fails with "The imported target "CGAL::CGAL_Qt5" references(...)" even if we don't use cgal_qt5 - so for xenial (libcgal 4.7) we have to install libcgal-qt5-dev, which will install libcgal-dev as dependency. Debian Jessie (libcgal 4.5) doesn't have libcgal-qt5-dev at all, hence the complex control dependency rule
+ on Debian Jessie (libcgal 4.5) library CGAL::CGAL doesn't exist yet, so we have to use a different libraries list

+ it's not used since a while

+ layout fixes important for PDF documentation

+ update raporter3 screens
+ fix not fitting time in raporter3 window (status bar)

+ add new screens
+ fix conflicts in keyboard shortcuts
+ fix lines not fitting in single pdf page

+ fixed some not-up-to-date info

+ they were temporarily disabled during cmake transition (commit "cmake transition: essential changes for everything") and never restored
+ for some strange reason these changes configure.cmake are not sufficient for xyzgraph.cpp to be built - so remove ifdefs

+ should Kontroler be restored, this should be reverted

+ they should be nonzero
+ setting these margins in existing code doesn't seem to change anything
+ after setting these margins param descriptions were too small in horizontal mode, so I reduced space between graphs and printout title and also I reduced font sizes of title and from-to label

+ in horizontal mode makes param names fit into page

+ it makes more sense, user can still change current orientation using File menu

+ it displays sth much worse than what is printed to pdf