Merge pull request #626 from Half-Shot/hs/bump-to-v12

.travis.yml

Dockerfile

README.md

config/config.sample.yaml

config/config.schema.yaml

package-lock.json

package.json

src/bot.ts

src/channelsyncroniser.ts

src/clientfactory.ts

src/config.ts

src/db/schema/dbschema.ts

src/db/schema/v3.ts

src/db/schema/v8.ts

src/db/schema/v9.ts

src/db/sqlite3.ts

src/discordcommandhandler.ts

src/discordmessageprocessor.ts

src/matrixcommandhandler.ts

src/matrixeventprocessor.ts