misc/far2l: update the port to version 2.5.0 (yet another release)
- Move `libarchive' from global USES list to SMB where it's pulled explicitly; otherwise the program's happy with base system's one: Found LibArchive: /usr/lib/libarchive.so (found version "3.5.1")
- Switch to GTK+2-based wxWidgets: it's noticeably faster and does not pull heavy and useless (for this particular program) WebKit
- Augment the port description while here, particularly, remove no longer relevant "alpha version" warning
Reported by: portscout