Allowing direct access to Section properties.
Explaining direct access.
Properly parsing sections which have free text.
Supporting all kinds of nagios sections.

- refactored code to reuse section extraction logic
- supporting contactstatus, hostcomment, hostdowntime, hoststatus, info, programstatus, servicecomment, servicedowntime, servicestatus
Better parsing of decimal properties.
Parsing close sections.
Merge pull request #2 from pascallouisperez/master

Direct access, all sections and refactoring