* Convert code format to python2.7 (SAC)
* Convert code format python2.7 (TD3, all fD)
* Remove no use import and black setting
* Change SAC param
* Change env name Reacher-v2 to v1
* Remove old version reacher training script
* Convert code format python2.7
* Modify .travis.yml
* Add install command python3.6 & black on Makefile
* Fix seperator to tab on Makefile
* Modify Makefile
* Fix little error
* Change td3 gamma parameter
