5.0.0 beta 2 New export format

• Export class members as flat list.
• Remove the following fields from export data: component, subclasses, superclasses, mixedInto, parentMixins.
• Lots of improvements to @inheritdoc system.
• Add @localdoc tag for non-inheritable documentation.
• Lots of improvements to warnings system.
• Enabling/disabling of warnings within a specific path.
• Print warnings for undocumented parameters.
• Add warning type for @tag syntax errors.
• Add warning type for repeated @tag.
• Add --css option.
• Allow overriding of builtin tags.
• Remove support for old categories.json file syntax.