add tests for usernames with 2 & 3 byte utf8 characters
Merge branch 'master' into FS#2867
Merge branch 'master' into FS#2867
replace \s, \S with [ \t], [^ \t] in regexs used with acls
unittests for auth_loadACL
skip FS#2867 test if \s doesn't match \xA0 after attempting to change the locale
ensure locale is set back to the original value
Merge pull request #395 from splitbrain/FS#2867

FS#2867, ACL processing may fail with utf-8 characters which include byte 'A0'.