GitLab

* updated boost submodule

* updated docker with new stable Clang and CMake

* switch to dev docker

* updated setup script

* updated MinGW on Appveyor

* updated Azure config to use docker for GPU task

* do not upgrade gcc - takes too long

* test: switch compilers

* switch compilers back

* get back to main docker

* ci fix

* ci fix for Appveyor

* actually firx Appveyor

* refined command status check

* refined Appveyor

* redirect all warnings to stdout

* added test for huge string model

* fixed tree sizes field

* simplified model structure

* fixed test and added try/except

* fixed xcode version

* fixed brew on Travis

* fixed brew on Azure Pipelines

[ci][docs] updated temp fix for warning written to stderr, fixed conda permissions and updated bench link (#1849)

* Update .appveyor.yml

* updated bench link (404)

* fixed conda permission error on Azure

* use stable container

* Update Dockerfile

* Update Dockerfile

* chmod conda folder

[ci][python] fall back to producing one wheel for macOS and drop support of OSX 10.6 and 10.7 (#1826)

* updated fix for macOS on Travis

* hotfix

* execute notebooks on CIs

* run notebooks in interactive mode and increase timeout for MinGW

* hotfix alphabetically sort packages installation

* renamed helper folder to helpers

* added library dependencies check

* sort package installation

* speed up the build

* remove gpu docker

* add boost ppa

* remove duplicate installs

* Update test.sh

* conda install mkl qt

* addd windows

* Update .vsts-ci.yml

* fix gpu boost

* added docstring style test and fixed errors in existing docstrings

* hotfix

* hotfix

* fix grammar

* hotfix

* downgrade Xcode version on Azure

* fixed docs and warning

* use new keywords

* fix conda install

* try to fix conda

* conda

* dowgrade gcc version on Azure

* small fixes, update Artifacts condition for easy debug.

* Update CMakeLists.txt

* Update CMakeLists.txt

* Update CMakeLists.txt

* Update setup.sh

* Update CMakeLists.txt

* Update .vsts-ci.yml

* Update CMakeLists.txt

* remove the lgamma

* update comment

* make sure that we use appropriate compiler

* run pytest for docs folder too

* fixed pylint error and some minor style issues

* reorganized CI files

* merged scripts into one