* vue: use our own store in place of vuex
* vue store: add getters, watcher and use internal vue instance
* vue store: better state getter and credits to Vuex
* vue store: $watch -> watch
* vuex store: pass store to getters and fix typos
* add comments to store, start writing tests
* fix unit tests and add missing ones
* cleanup components, add less folder, fetch tassks
* use Vuex helpers
* pin vuex version
* move semantic-ui theme to assets/less, keep website/build empty but in git
* import helpers from vuex
