txt_parser and txt output: file level comments
when a line in the Vallex textual data format starts with a comment sign, especially when it is preceded by a blank line, it should be treated as a file-level comment; currently, it is appended to the previous LU, which means that when something is added to the end of preceding LU, it is added AFTER the comment rather than before it (cf. https://svn.ms.mff.cuni.cz/trac/vallex/changeset/13224/)
Edited by Anna Vernerová