Merge pull request #216 from zmbps/master

Update FreeBSD installation instructions
Update makefile for win32
Merge pull request #221 from mattn/win32make

Update makefile for win32
Add support for search-by-language.

(List of language files from whatever version of Ack I had laying around)
remove language list duplication
doco for search-by-language
fix #217
Skip long lines (fixes #189)