fixes #5652

Update start-installation.md

Falta un comando para que la instalación no falle

Translate structure-application-components to pt-BR

Merge branch 'master' of git://github.com/yiisoft/yii2 into pt-br-structure-application-components.md

Translate guide/structure-application to pt-BR

Fixes #4457: Added support for using noscript for css files registered through asset bundles and Html helper

Fixes #5587: `json_encode` is now used with `JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE` where it makes sense, also it is now default for `Json::encode()`

Fixes #5402: Debugger was not loading when there were closures, resources or PDO instances in the logged data

[skip ci] structure-entry-scripts and structure-overview PT-BR translation

Add new word conventions to PT-BR translation workflow and break its paragraphs for better readability

update caching-overview.md [skip ci]

Updated version of fxp/composer-asset-plugin in installation guide after testing new version. It's faster!

Fixes #5598: added ImageMagick with PNG and GD with FreeType checks to requirements of basic and advanced applications, used better Captcha exception message

update caching-fragment.md [skip ci]

to avoid issues about 404 links in the guide

Docs ja 2014 10 18