[pkg] fold in changes

CHANGELOG

client/changes/bug_7386_fix-hanging-sync

client/changes/bug_avoid-double-decryption

client/changes/bug_fix-order-of-incoming-document-events

client/changes/bug_move-sync-db-and-encpool-creation-to-api

...anges/bug_wrong-sqlcipher-passphrase-now-raises-correctly

client/changes/feat-7338_refactor_crypto

client/changes/feat-refactor_decr_pool

client/changes/feature-improve-sync-status-info

client/changes/feature_6980_remove-mac-from-secrets-file

client/changes/pkg_improved-scripts-and-deps

client/changes/refactor_encdec-pool-startstop

client/changes/refactor_remove-simplejson-dep

client/changes/style_lots-of-style-changes

common/changes/refactor_remove-simplejson-dep

server/changes/refactor_remove-simplejson-dep