Merge pull request #1 from Bryukh-Checkio-Tasks/master

First updates for code golf mission
Merge pull request #2 from Bryukh-Checkio-Tasks/master

editor updates
close eval/exec
update description
add coefficient in description
It seems CheckiO team is working for balanced coefficient.
Update python_3

Use spaces rather than tabs
Update python_27

Use spaces rather than tabs
add Ruby local_checker (for some sake?)
merge