Use sed wildcards instead of grepping for common values

[Pilcrow182]

I noticed that both the main script and the uninstall script were scanning through all specific hard-coded values to try and find the line to modify. While the approach worked, all those grep and sed commands made adding more choices in the future needlessly difficult.

I've modified the script to use sed's single-character wildcard feature in order to simplify things: instead of looking for specific numbers, it now changes the refresh limits from any pair of two-digit numbers to the selected choice.

[ryanrudolfoba]

This is awesome! I was having a hard time figuring things out with sed thats why i used the longer method of grepping. Your solution is perfect thanks so much!