Hun-date-parser

New date formats:
- Duration in days or weeks (`február 9-től 3 napig`, `egy hétig tart holnaptól`)
- Uncomplete end date recognition (`február 13-tól 17-ig`)
- Alphabetized day number recognition (`február elseje`)
- Infering intervals from the context (`kezdet: február 13 eddig: feb 17.`)
- Bugfixes, extended tests

- Added support for reversed IDO dates (DD-MM-YYYY)
- ISO dateparts can now be separated by space

- Bug fixes
- New parsing rules
- Search scope functionality re-designed, past search added

Fixed a bug related to named month parsing

Small bug fixes and improvements

- Minor bugfix related to date2text functionality
- Beta version of date range restriction