installonlies: log the discovered running kernel.

Related: RhBug:1087534
.gitignore: __pycache__
fix: sigsegv when wrong reldep is passed to selector as a provide.

Related: RhBug:1096506
[kernel] look for the installed kernel in @System.

Accidentally discovered while working on RhBug:1087534.
fix kernel detection by being more strict what we look for. (RhBug:1087534)

The ending globbing character previously also matched "+debug" of a debug
kernel and ended up being the first we looked at. If kernel-debug was
installed, it was considered the running kernel and the operation of sorting
installonlies went astray.
Subject: accepts/returns pattern in unicode (Related: RhBug:1092777)
New version: 0.4.16