Added features:
(1) Lets the user decide the recording time and an option to discard the recording.
(2) Saves the recording in a different file each time.
(3) Saves the recording in a folder called "Saved recordings"

Fixed a typo in playwav.py which wasn't letting the stream to be closed properly.
Some cleanup
Merge pull request #1 from voodoo94/master

Fixes and updates to your nimble -repo