* platform: fix build on Linux and update web-view

* deps: replace xz-decom with xz2 and update deps

* platform: fix regression...

... that prevents the build on Windows

* linux: implement platform-dependent functions

* travis: add macos and windows CI

* travis: use official Rust Docker image

* Update Cargo.lock for new version

* Break apart REST into separate services

This cleans up locking, ensures consistent futures for all endpoints
and enhances code re-use.

* Clean up codebase, fixing minor errors

* Update packages, use async client for downloading config

While this has a hell of a lot more boilerplate, this is quite
a bit cleaner.

* Add explicit 'dyn's as per Rust nightly requirements

* Migrate self updating functions to own module

* Migrate assets to server module

* Use patched web-view to fix dialogs, remove nfd

* Implement basic dark mode

* Revert window.close usage

* ui: split files and use Webpack

* frontend: ui: include prebuilt assets...

... and update rust side stuff

* build: integrate webpack building into build.rs

* Polish Vue UI split

* Add instructions for node + yarn

* native: fix uninstall self-destruction behavior...... by not showing the command prompt window and fork-spawning the cmd

* native: deal with Unicode issues in native APIs

* native: further improve Unicode support on Windows

* travis: add cache and fix issues

* ui: use Buefy components to...

... beautify the UI

* ui: makes error message selectable

* Make launcher mode behaviour more robust

* Fix error display on launcher pages

* Correctly handle exit on error

* Bump installer version