add: yii-select2
edit: base controller
add: base model, uniqueMultiple
add: global, hostInfo & language methods
add: helpers/Page, og support
ad: helpers/Url, swithLanguage & setPrimaryDomain & parseUrl
refactor: admin/global.js
add: select2 theme
fix: auploader description & preview image
fix: atable, prepareFields & add: getAttribute()
refactor: files
upd: news & tags (selectize.js)
upd: etaggable
edit: Tags, delete deleteByTags()
upd: base model, asArray/asObjects/search/get
add: ATable, operationsAction & fix: getAttribute
upd: tags, rules