* chore: move generate-standalone to gulp tasks * move build-flow-typings to gulp tasks * chore: move build-typescript-typings to gulp tasks * move generate-type-helpers to gulp tasks * chore: include build-typings and generate-type-helpers in gulp build * update generate-standalone comments * address review comments * chore: revert build-typings refactor * fix: run build-typings in build-no-bundle