0.16.0

• Added documentation hover (F2 or mouse-over the reference). Also documentation added to code completion popup.
• Added insertion of function arguments for function code completion proposals.
• Enabled gocode's propose-builtins option, which isn't enabled by default.
• Reworked the icon and label of code completion proposals and fixed some related issues. Now the icons are consistent with the Outline icons.
• Removed preference "Show error dialog if gocode failures occur" as it's no longer necessary.
  • Content Assist will now distinguish between setup errors (errors that the user can fix, which are related to configuration and not the source code) and other tool errors. For setup/critical errors, a dialog will always be shown. For the other errors, if Content Assist was invoked manually, a dialog will also be shown, but if it was activated automatically the error will only be displayed in the editor status line.
• Improved gofmt error message.
• Added: show Project Explorer error element if project is not contained in GOPATH.

• Fixed: Eclipse variables not being substituted in environment-variable values of Build Targets and launch configurations.
• Fixed: Project Explorer GOPATH elements not updated if project GOPATH settings changed.
• Fixed: Progress dialog never showing up when "Ok" pressed in LANG_NAME project properties page.
• Fixed: Erratic text cursor bug when typing in GOPATH field and gofmt field.