Fixes validation order in LabelAddForm::validate()
Adds missing language items

+ sorts and unifies some language items
Use the URL provided by the package server when downloading packages
Properly append port to Host header in HTTPRequest
Fixed keyword list not being in a list element
Updating minified JavaScript files
Improved inline editor to support non-editable posts
Updating minified JavaScript files
Fixes typo and formatting
Preparing update 2.0.0 Beta 4