smaller rpsls function (for 2.7)

The print messages were the same in (almost all) cases, so:
-We don't print, but return the string.
-We return (+ 1 for error) string value
Update rpsls.py

change input() to main()
Merge branch 'master' into tas_changes

Conflicts:
	rpsls.py
Merge pull request #1 from stafot/tas_changes

Tas changes rockz