Changes in version 0.3.0                        

  - The metasurvey package is now a meta-package for the modularized
    ecosystem, in the style of the tidyverse. A single
    library(metasurvey) loads and re-exports metasurvey.core,
    metasurvey.fromstata, metasurvey.anda, and
    metasurvey.explorer.backend. See MIGRATION.md.
  - The monolithic code moved to metasurvey-legacy and was split
    following the rOpenSci review's modularization suggestion.
  - High-level orchestration reproduce_workflow() and
    resolve_weight_spec() live here (they span core + anda + the API
    backend).
  - The Shiny explorer is optional:
    metasurvey.explorer.frontend::explore_recipes().