Use dedicated server to the full of it's ability

[abumq]

When we finish migration (issue #3) we will have a lot of gates open to many new features and I will only list them in few words. We will address all the following issues below, some of them may only be idea for now and will work on them in future but will definitely need some notes about each

• Use ffmpeg (finally!) to convert audios on the fly whenever allowed (This allowed will be done via new column in Audio table)
• Clean the code as much as possible -- As part of these changes we will also remove old / unused code and restructure existing code

[abumq]

Closing this, will create seperate issues for each of the items