autoload: create errcheck.vim and move it
autoload: more changes, move GoPlay
Merge branch 'master' into autoload
Merge branch 'master' into autoload

Conflicts:
	autoload/go/errcheck.vim
autoload: move def
autoload: move doc.vim to autoload
autoload: move fmt
autoload: move import
autoload: move lint
autoload: final touches
autoload: fix preloading of autocmd in fmt
Merge pull request #180 from fatih/autoload

vim-go: move functions to autoload folder for lazy loading