1.7.10:
-------

  Enhancement:
   - Add new SublimeLinter protected regions key
   - Add support for custom environment variables
   - Add protected regions for diff popup (Issue #476)

  Fix:
   - mangled {{branch}} text when `git status` output is colored (Issue #474)

  README:
   - Fix some typos
   - Add description of "diff_popup_protected_regions" setting
   - Add description of "env" setting
