GitLab

* add data_splitter for cv

* update gitignore

* clean code

* Add multiclass example in R

* Update subsequent files

When setting the parameter 'shuffle' of cv method to False ,the program raises the error below:
UnboundLocalError:local variable 'randidx' referenced before assignment

fixed.

* refine plot

* use warnings

* refine  logic

* revert 'move to compat.py'

* add dockerfile

* [deprecated]remove MAINTAINER

* Support Poisson regression

Close #233

* update docs

* add plot metrics

* move 'raise Exception' to check_not_tuple_of_2_elements

* rename 'plot_metrics' to 'plot_metric'

* fix misleading message/docs

* change 'Metrics' in title to 'Metric'

* fix misleading comment

* add plot tree

* add docs

* add example

* add test

* fix test

* fix decision type

* add show_info

* use feature name if available

Fixed library install dir on Windows

* Add lgb.Booster parsing function

* Add data.table, magrittr, jsonlite to Imports

* use json instead of repr/eval for pandas_categorical

* fix json dumps with numpy data

* add more test cases

* expose save model to string to c_api

* add 'save-model-to-string' to python; use it to copy model

* remove boosting_type