Open Source & Servers Tree & Language update

• Published application code on GitHub
• No code obfuscation
• Added language menu
• Added english language version
• Added warning before halting server
• Removed license
• Improved renaming in servers tree
• Improved icons
• Improved icons rendering in servers tree
• Fixed fatal error while downloading server engine in "Create local server" tab
• Fixed fatal error while running commands in remote console
• Fixed error while opening nonexisting file on application load
• Fixed too frequent scrolling down in remote console
• Fixed creation of empty lines after running some commands in remote console
• Fixed error with links in FTP, by ignoring them