Merge pull request #8 from Pavitheran/master

Updated instructions
added pleer_caler
Merge remote-tracking branch 'origin/master'

Conflicts:
	getSongLastFm.py
added pleer_caler
Merge pull request #9 from Pavitheran/master

Added Credits
'as'
Merge branch 'master' of https://github.com/udaraweerasinghege/download-singles
Update README.md
Fixed a bug where program would crash for songs with '/' or '\' in their name.
Added a message to communicate when all songs have finished downloading.