fix some bug

Update config.py

Update train.py

fix typo

Create LICENSE

Merge pull request #13 from ck196/master

change deprecated method

bug fix

update model links

slim support

Merge pull request #5 from robrao/add_more_cmd_line_args

add command line args to test.py

added more command line arguments, added make directory for cache when it does not exist

Merge pull request #4 from robrao/support_tensorflow-1.0

README tweaks, and download script refinement