Add git_goto_diff command to jump to the diff line with Enter key
Store git_working_dir in the view settings instead of using a global var
Use git root directory to create absolute path names in GitGotoDiff

Problem reported by @vanrijn (Jason Kasper)
Adding double-click mousemap file so we can navigate git diff buffer that way too.
Merge pull request #1 from vanrijn/add-double-click-for-git-diff-buffer

Adding double-click mousemap file so we can navigate git diff buffer that way too.
removed mousemap
Merge pull request #2 from vanrijn/remove-mousemap

removed mousemap
Fix incorrect assumption that git_root_dir is populated and allow GitGotoDiff to work with Git Custom commands
Sanity-checking git_root_dir and if it's not valid for the current hunk's file, prompt the user to fix it rather than just failing.
Stripping whitespace off filename to fix problem with filename with spaces.
Merge pull request #3 from vanrijn/allow-git-goto-diff-to-operate-on-context-instead-of-name

Fix incorrect assumption that git_root_dir is populated and allow GitGot...
Merge pull request #224 from dacap/master

Jump to modified file with Enter key in "Git Diff" view
merge conflicts fixed. now to make it work
Add functionality from python2 branch for navigating to diff hunk via diff viewer
Merge pull request #344 from vanrijn/python3-git-goto-diff

Port python2 GoToDiff functionality to python3 branch