* 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
* fixed Python-API references
* moved Features section to ReadTheDocs
* fixed index of ReadTheDocs
* moved Experiments section to ReadTheDocs
* fixed capital letter
* fixed citing
* moved Parallel Learning section to ReadTheDocs
* fixed markdown
* fixed Python-API
* fixed link to Quick-Start
* fixed gpu docker README
* moved Installation Guide from wiki to ReadTheDocs
* removed references to wiki
* fixed capital letters in headings
* hotfixes
* fixed non-Unicode symbols and reference to Python API
* fixed citing references
* fixed links in .md files
* fixed links in .rst files
* store images locally in the repo
* fixed missed word
* fixed indent in Experiments.rst
* fixed 'Duplicate implicit target name' message which is successfully
resolved by adding anchors
* less verbose
* prevented maito: ref creation
* fixed indents
* fixed 404
* fixed 403
* fixed 301
* fixed fake anchors
* fixed file extentions
* fixed Sphinx warnings
* added StrikerRUS profile link to FAQ
* added henry0312 profile link to FAQ
* added doc test
* fixed 404
* prevented maito: ref creation
* added rst structure test
* fixed unknown directives
* added code for the future check for html syntax
* replaced problem link
Nikita Titov