Fix file sender null terminator.
Force terminate filename.
Merge pull request #128 from aitjcize/null-term

Fix file sender null terminator.
Merge FreeBSD fixes upstream
Yup
Fixed a "bug"
fix file transfer bug
Merge branch 'master' of https://github.com/Tox/toxic
Merge branch 'master' of https://github.com/JFreegman/toxic into groupbot