1.12.0

Added

• Meta::create($name, $context, $appDir, $writeDir) places an application under {writeDir}/{Vendor}/{Project}/{context}, or its own var/ when null
• $writeDir on AbstractAppMeta: the base an application writes under, carried rather than derived
• Meta::appDir($name) resolves an application directory from its name
• Meta::create() refuses a write directory the current directory would resolve, with WriteDirNotAbsoluteException