only remove BOM on non-empty files to avoid a warning
Merge branch 'master' of github.com:pascalchevrel/langchecker
only remove BOM on non-empty files to avoid a warning + remove old gettext methods
move functions in lang_update to functions.inc.php
move error_logging to its own function for better logging flexibility and potentially use monolog library in the future
rename  as
move string loading in the main loop
wip, currently seems functional
Merge pull request #31 from pascalchevrel/issue-30

Issue 30