In lecture name format last number with leading zero; add some info prints
Merge https://github.com/nonsleepr/edu_10gen_dl
Fix merge error
Fix broken compatibility: in file/dir names space (' ') is replaced with
underscore ('_'). It's controlled by replace_space_with_underscore var in
the main file.
Fix obtaining a download directory if '--interactive' is specified
Add extra space to interactive message
Small changes in '--interactive' option handling
Fix file download
Merge pull request #7 from nettoyeur/master

Restore naming behaviour + set correct DIRECTORY if '--interactive'