Add weights to asset manager
Initialize "users" client side app from controller
Initialize "thread_log" client side app from controller
Use cache for Handlebars AST
Remove unused templates from the default chat style
Attach js files to chat page in "_layout" template
Initialize chat js application from controller
Remove unused value
Rename "styles/dialogs" to "styles/chats"
Create Asset/Package class to reduce code duplication
Use 500 as default weight for plugins assets
Simplify plugins' assets attachment
Always set focus on message input after message sent

Fixes #66
Increase cache ttl for handlebars templates
Remove unused "jsString" Handlebars.php helper
Increase Mibew version
Fix localization of unknown strings on client
Remove unused "append_query" function
Fix misssed semicolon in js test
Move EventDispatcher class to a separate namespace