Remove BOM
Convert UTF-8 encoding

Attempted to repair several mangled files as well. Also removed empty or redundant languages. There are issues with the 'german' and 'de_utf8' direcories, as there are substantial differences that still need to be resolved.
Conversion to UTF-8
Conversion to UTF-8
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/geekwright/XoopsCore
Correct occurances of Unicode replacement character

In addition, do a quick update of the readme.txt files that were affected.
Merge pull request #113 from geekwright/master

Cleaning up encodings