In which our hero impoved holding the button

In which our hero added the option to run external curl to download f…

…iles. This enables the app to be closed while downloads run in background during gaming sessions

In which our hero updated the documentation

In which our hero prepared version 2.3

In which our hero updated the dependencies

In which our hero made the gamepad handling a little more comfortable

In which our hero updated the documentation

In whichh our hero fixed the configuration

In which our hero:

* fixed some typos
* did some code refactoring
* introduced romsdownload, romsemulator, romsmode and wowroms as search engines
* introduced sqlite3 as database to store some data which will be later used for configuration

In which our hero did the first version of the ROM Fetcher