Version 6.5.0

This release stabilized the lollipop interface symbol by allowing it to be zoomed and accounting for implementing class renames. Additionally, some static constants values were moved to the preferences file for end-user customization. The rest of the fixes were general stability and maintainability updates

The following issues were either fixed, deferred, or summarily closed

• 287 Fix Travis CI
• 285 Fix open and close of projects
• 283 Cleanup PyutVersion
• 282 Standardize invalid value warnings
• 281 Fix Lollipop Interface on Implementing class rename
• 280 Fix Unit Tests -- Which ones run
• 279 Move Command Tests
• 278 Move commands package to history package
• 275 Fix lollipop interface for zoom
• 263 More Static Static Constants to Preferences
• 261 "Startup x ,y position can use dimensions like object"
• 260 Fix preferences bogus config value
• 162 Avoid Window IDs
• 137 Update LineShape to use Common
• 91 Provide Visual Representation of Mediator State Machine
• 81 Add export/import icons to toolbar
• 71 Implement JSON import/export