* Added raises pragma to every proc in yaml.nim
* Properly encapsulate exceptions from YamlStreams
* Discovered a Nim compiler bug and added a workaround
* Added possibility to query line, column and line content from
YamlParser
* Updated rst documentation
* Actually call callback in fastparse if available
* Fixed parsing YAML version
* fastparse now used for everything
* private/[lexer|parser].nim gone
* Made fastparse use YamlParser object
* Got all tests working with fastparse
* Some more smaller changes to API
* YamlParserEvent -> YamlStreamEvent
* YamlStreamEvent is no longer a `ref` object. Test suite now
runs in a small fraction of a second (compared to several
seconds before)
* Introduced YamlStream