Fixes for 0.5.0 (#1158)

* add tf2 support

* cleanup

* update to 0.5.0

* fix & update setup

TFlearn 0.3.2 release

updating tflearn to version 0.3.1

Merge pull request #618 from tflearn/1.0

TFLearn v0.3 release

v0.2.2 release

release v0.2.1

Update setup.py

update examples doc