Merge branch 'next' of https://github.com/jreybert/vimagit

* 'next' of https://github.com/jreybert/vimagit:
  fix smart magit close behavior
  plugin/magit.vim: if opened with MagitOnly, 'q' shows previous buffer
  test: fix gold file after previous commit
  plugin/magit.vim: fix template commit duplicate on refresh
  plugin/magit.vim: fix warning when magit is closed with bdelete
  smart cursor position when no previous file
  doc: introduce vimagit modes
  update commit mode to amend if already in commit mode
  README: fix <C-n> in markdown
  Fix jump to "file already aopen" abort
  syntax/magit.vim: fix sha1 highlight
  test/version.vader: fix test description
  plugin/magit.vim: update version to 1.7.1
  Open magit buffer with a smart cursor position
  fix: make gaps between sections consistent
  plugin/magit.vim: <cr> toggle vim folding (ref #71)