Unified installation instructions for Red Hat distros

fixed song output for cmus

Previously would print `"song name" "song artist" -`

Add Fish version and fix BC scale.

If $HOME/.bcrc has the scale option set (scale = 8), the memory
calculation will result in a string like "16384.00000000MB". This fix
should result that by setting the scale to 0.

Fix bug with ascii size, the pure bash solution counted the file a little weirdly causing issues for some ascii art

Image directory randomization can go out of bounds

Need to subtract 1 from the total number of files in a directory or else sometimes it will have to fallback to ascii art.

Support screen resolution on Windows 10

Edited the WMIC command used so that the screen resolution can be obtained on Windows 10.

prevent 'tag artistsort' from showing up in song title

Pure bash solution to getting ascii size, don't run tput in ascii mode and supress config and script dir errors

Faster math syntax for index variables