Fix deprecation warnings
Merge pull request #403 from ebfe/deprecation

Fix deprecation warnings
Fix wc output for bytes
Allow test to be checked by the Busybox test suite
Merge pull request #404 from Arcterus/wc-fix

Fix wc (for bytes) and test (for testing purposes)
Fix fold for Busybox tests (other than unicode)
Merge pull request #405 from Arcterus/fold-fix

Fix fold for Busybox tests (other than unicode)