v.2.0

• now download and install update is working in background
• added tray icon and show it when new version found
• added download control option
• added "ChromiumBinary" option to set custom Chromium binary file name
• increased download buffer size
• fixed run Chromium when directory contain spaces
• fixed race conditions on download
• fixed relative/environment path generation
• fixed open links if chrlauncher set as default browser
• removed PPAPI from package
• updated readme
• code cleanup