v0.4.0

Added

• Add "+" button in Tomcat Server Explorer to create new Tomcat Server
• Add option to create new Tomcat Server to start if there is no server to start
• Add context command "Delete Tomcat Server" for running server in Tomcat Server Explorer

Changed

• Browse directly to select Tomcat Directory and create Tomcat Server without clicking "Browse..."
• Prompt information message to confirm continuing operations when user creating same Tomcat Server

Fixed

• Using command to start a running server throw error and shutdown the running server #60
• Error message shows not clear enough information to user when no server to stop #42
• Using command to delete a running server didn't kill all tomcat process #61
• Command 'Open server.xml' command shows in Tomcat Server Explorer even if there is no Tomcat Server #37