vim-go: several cleanups and behaviour changes
Merge branch 'master' into improved_binary_handling

Conflicts:
	ftplugin/go/fmt.vim
vim-go: remove misc/vim notes
goinstall: re introduce go_bin_path and add docs about it
install: check multiple GOPATHS, pick up the first if there is any
Merge pull request #166 from fatih/improved_binary_handling

vim-go: several cleanups and behaviour changes