Reflection: now created with factory, bridge for Tokenizer added
Configuration: ThemeConfig for managing theme config options added

[BC break]: common, main and optional keys removed, common format united to main and optional; template/<theme>/config.neon only sets differenced to default, as apigen.neon does
Generator: Element managing decoupled to Elements [ref #429]
Generator: element generator split to standalone classes [ref #429]
Generator: HtmlGenerator removed (due to rename to Generator) [ref #429]
composer: contributer name put in one line
Configuration: OptionResolver added, responsibility for any configuration added where possible
Parser: ParserResult renamed to ParserStorage
Parser: LoadParsedElement uses only ParserStorage now
FileSytem: Finder removed, Wiper simplified
Parser: Backend now uses Bridge for TokenReflection
Templating: TemplateFactory now sets base variables using Elements
memory limit increated to 1024M
Templating: TemplateNavigator added [ref #429]
misc changes mostly related to Configuration (before event based, now class based), namespaces and elements