Make sure label text is escaped if it is not safe

Signed-off-by: Rafael Mendonça França <rafaelmfranca@gmail.com>
Make sure hint text is escaped if it is not safe

Signed-off-by: Rafael Mendonça França <rafaelmfranca@gmail.com>
Make sure error_prefix option is escaped if it is not safe

Signed-off-by: Rafael Mendonça França <rafaelmfranca@gmail.com>
Release 3.0.1
Merge branch '3-0-1'

Conflicts:
	CHANGELOG.md