TODO:

key: + = to add, - = to remove, x = completed, # = comment

x Add option for multiple audio formats
+ Dynamic libraries/package IUP
x Option play file once finished
+ Fix FFMPEG MARQUEE bar
x Make cancel button exit in url dialog
x Fix progress bar cancel button
x Display current action in progressbar instead of youtube link itself
x Url validation
x place spaces in file name with dashes/underscores
x Append extensions to file name in save dialog unless exists
+Percentage in progress bar --- not possible with iUP
#possibly more later