* Fixed a parser bug that got confused when looking for an implicit
map key in a plain scalar that contains &, * or !
* Added OutputYamlVersion to PresentationOptions
* Folded block scalars were presented with "|" instead of ">"
* It has not been properly detected that a scalar cannot be outputted as
literal block scalar
* Renamed some symbols for consistency, fixes#6:
- yamlStartSequence -> yamlStartSeq
- yamlEndSequence -> yamlEndSeq
- yamlStartDocument -> yamlStartDoc
- yamlEndDocument -> yamlEndDoc
- yTagMap -> yTagMapping
* Improved code formatting at some places
* Fixed code documentation at some places
* Added generic objects to TODO list
* Removed obsolete parsing tests, these are superseeded
by yaml-dev-kit test suite integration
* Added PresentationOptions object; merged PresentationStyle,
indentationStep and NewLineStyle in it
* Updated signatures of relevant procs
* Implemented user-defined newline style in presenter
* Some typo fixes in code
* nim documentation now generates API doc with source links
* presenter now uses "" if a string starts with @ or `
* Removed some outdated stuff
* 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
* Added YamlPresenter*Error exceptions
* Added raises pragma to present()
* catch exceptions from YamlStream and Stream in present() and
put them as cause into YamlPresenter*Error
* Added loadToJson() proc
* Give "~" the type hint yTypeNull
* Always output "null" for yTagNull/yTypeNull scalars when
presenter is in JSON mode
* Added YamlWarningCallback that may be used to capture
parser warnings
* Removed yamlWarning as event kind
* Replaced checks for well-formedness in presenter with asserts
* Added checks for JSON compatibility of YamlStream in presenter
* Added proper type hints for special float values in
serializer to be able to check for them in the presenter
* Yield tag of custom type serialization when using ytsRootOnly,
but don't yield tags of map keys or values
* Yield proper tag of Table[K, V] serialization if requested
* renamed dumper.nim to presenter.nim to conform to YAML spec