Create LICENSE

Adding GNU GPL v3 License
Update setup.py

addig license
Reviewing, refactoring, implementing not implemented methods and etc ...
Reviewing, refactoring, implementing not implemented methods and etc ...
Reviewing, refactoring, implementing not implemented methods and etc ...
JalaliDate, done
all test passed
all done
welcome python 3
python 3 done.
python 3 done.
python 3 done.
python 3 done.
update description
Merge pull request #6 from akfoss/master

update description
Merge pull request #3 from pylover/master

upstream changes