[Full Changelog](https://github.com/matrix-org/matrix-js-sdk/compare/v0.7.4...v0.7.5-rc.1) * Support for blacklisting unverified devices, both per-room and globally [\#336](https://github.com/matrix-org/matrix-js-sdk/pull/336) * track errors when events can't be sent [\#349](https://github.com/matrix-org/matrix-js-sdk/pull/349) * Factor out device list management [\#346](https://github.com/matrix-org/matrix-js-sdk/pull/346) * Support for warning users when unknown devices show up [\#335](https://github.com/matrix-org/matrix-js-sdk/pull/335) * Enable sourcemaps in browserified distro [\#345](https://github.com/matrix-org/matrix-js-sdk/pull/345) * Record all e2e room settings in localstorage [\#344](https://github.com/matrix-org/matrix-js-sdk/pull/344) * Make Olm work with browserified js-sdk [\#340](https://github.com/matrix-org/matrix-js-sdk/pull/340) * Make browserify a dev dependency [\#339](https://github.com/matrix-org/matrix-js-sdk/pull/339) * Allow single line brace-style [\#338](https://github.com/matrix-org/matrix-js-sdk/pull/338) * Turn on comma-dangle for function calls [\#333](https://github.com/matrix-org/matrix-js-sdk/pull/333) * Add prefer-const [\#331](https://github.com/matrix-org/matrix-js-sdk/pull/331) * Support for importing and exporting megolm sessions [\#326](https://github.com/matrix-org/matrix-js-sdk/pull/326) * Fix linting on all tests [\#329](https://github.com/matrix-org/matrix-js-sdk/pull/329) * Fix ESLint warnings and errors [\#325](https://github.com/matrix-org/matrix-js-sdk/pull/325) * BREAKING CHANGE: Remove WebStorageStore [\#324](https://github.com/matrix-org/matrix-js-sdk/pull/324)