Eggdrop v1.8.0 Release Candidate 4

We're going to pretend RC3 doesn't exist.

This RC:

• Reverts an attempted bug fix gone wrong
• Adds default FreeBSD Tcl install paths to the default configure search

We'll reset the clock by a day, and quit jinxing the release by pretending we know when we'll finally hit stable. Still, not bad for 5 years of work, eh? See you in a few weeks!