Map packages to include dirs. Fixes typechecking when --package is specified. Bump B version.
API changes:
* rename configDirectoryIncludes to configDirectoryIncludePaths
* add configDirectoryIncludes :: CompileConfig -> [(Maybe String, FilePath)]
* add nonPackageConfigDirectoryIncludePaths :: CompileConfig -> [FilePath]
* rename addConfigDirectoryIncludes to addConfigDirectoryIncludePaths
* remove addConfigDirectoryInclude, use addConfigDirectoryIncludePaths [x] instead
* add addConfigDirectoryIncludes :: [(Maybe String,FilePath)] -> CompileConfig -> CompileConfig
Types: Add some documentation