* added R-package docs generation routines
* change theme to be more consistent with sphinx_rtd_theme on main site in terms of color scheme
* placed man folder with old Rd files back
* specify full path to conda and make script more readable by one line - one pkg
* removed commented lines from build_r_site script
* made one line - one argument in build_reference() call
* pin R package versions
* fixed conflict
* use file to install deps for docs
* added C_API docs
* use breathe without exhale
* added missed params descriptions and make Doxygen fail for warnings
* escape char hotfix
* ignore unknown directive for rstcheck
* better handle env variable
* hotfix for 'Unknown directive type' error with C_API=NO
* Update .gitignore
* fixed pylint
* use already defined constants in conf.py
* do not suppress Doxygen's output
* addressed review comments
* removed unneeded import
* removed excess whitespaces
* don't use built-in name for variable
* simplified line parsing
* chanched link to related
* run parameter_generator.py
* removed old targets
* use tuples instead of list where possible
* hotfix for descriptions were erased and only last one was kept
* run parameter_generator.py
* separated checks from aliases section
* fixed docs building at Python 2.x
* updated docs building guide
* get back Python 3 at Travis
* test commit for OSX
* be more precise with python version inpylint task
* turned warnings into errors
* removed linkchecker validation from osx
* removed warning about not included into any toctree
* docs config cleanup
* refined deprecation warnings mechanism
* refine docs mock mechanism
* be more precise with python version in check-docs task
* redused the number of code lines
* refined venv deployment
* rollback python version in check-docs task
* revert 'refine docs mock mechanism'. autodoc_mock_imports seems to be not working
* added targets for big images
* rollback to default python version in check-docs task
* break long lines for mobile view
* replaced pip with conda where it's possible