Various install scripts fail due to OpenWRT's release candidate package naming scheme

[VITALISED]

A variety of scripts such as the Adblock install script use the pattern [0-9][0-9-]+ to find package versions. This does not seem to work with the current set of OpenWRT packages which all seem to be release candidates (i.e adblock_4.2.3-r2_all.ipk)

I found that [0-9][0-9-]+(-r[0-9])') generally helped as a workaround in these cases, however I don't really have the time to PR anything.

Hope this helps and that I'm not just blazingly incompetent somehow

[seud0nym]

Thanks for the report. I have made some changes that I hope will fix it.

[notmaroun]

I discovered this fix myself a bit ago but felt too dumb to post make a issue with my dumb code.

@VITALISED this is a very small world I remember you from Titanfall 2!!! I associated your name with Legion at one point hahaha I'm pretty sure I only remember you dropping Legion... Unless my memories are mixed up...

[seud0nym]

I am going to mark this as closed as I have just done a release. If there are any further problems, please re-open.