Fixes sorting of video titles with numbers (1 2 10 vs 1 10 2)

• Fixed number sorting
• Sorting is now case-insensitive
• Added license file

Fix bug when there are deleted videos in a playlist

v0.0.6

Show deleted video count

Fixes argument error when window 'top' is not an integer

v0.0.5

bump to version 0.0.5