add note for :describe queries, update heading levels, update readme
add note about :from requirement
update subquery docs
add/update aliasing & aggregation examples/docs
rename asset files
add thi.ng/validate dependency, add :select validator & generic validation helper, other minor doc updates
minor update validate
bugfix Triple -hash for cljs, bugfix PModelConvert cljs impls, add missing PModel impl for AliasMemoryStore
add trio.core unit tests
bugfix validate for cljs, update :describe to support multi-graph queries, memoize qvar? fn, refactor triple-verifier & bind-translator to avoid local symbol bindings, add docs, change section order
add query engine tests
bugfix projection example, add info about order of projection steps & filtering
add collect-source-graphs helper fn, add :from validation to :select query, add failed validation example, update validate
update internal links for GH (trial)
add docs to core protocols, triple type & stores, update index.org, bugfix links
bugfix qvar? memoization, only memoize regexp check, minor doc updates
import io.csv ns (from sema lib)