v1.0.3

Changes:

• Commands: a new :GoTestCompile command (with appropriate mappings) is added. Useful to compile a test binary or show/fix compile errors in quickfix window
• Autocompletion: fix trimming brackets if completion was invoked on a previous completion
• Oracle: fix Oracle scope settings. Added docs about usage.
• Oracle: referrer mode is improved to show referring lines in the quickfix window
• Snippets: fixed previously broken var and vars snippets
• Snippets: a new errt snippet is added, which expands to if err != nil { t.Fatal(err) }
• Snippets: a new errh snippet is added, useful to be used in a http.Handler
• Snippets: UltiSnips snippets are improved to take advance of Vim's Visual mode. For example selecting a block and typing if will create an if scope around the block.
• Documentation: fix duplicate docs
• Vim-go: cleanup README.md
• Vim-go: fix fallback binary path for Windows users. The fallback mechanism is used to discover the necessary Go tools, such as godef, gocode, etc...

Thanks for all contributors working on Vim-go.