Please apply bugfixe for persistent hunk range for 3-way and adding symlinks

[7max]

Fix errors with persistent hunk ranges when working with 3-way diffs, and adding symbolic links

• egg.el (egg-get-hunk-range): Handle 6 number hunk header range that happens in 3-way diffs (egg-unstaged-lines-delta-before-hunk): Handle 3 number range (happens on adding symlinks) (egg-staged-lines-delta-before-hunk): ditto

[7max]

Sorry I forgot about having a pull request with you until I seen the merge notification today. Since then I found 2 errors in my code, which give error on saving or restoring visibility, when hunk header has 6 numbers or 3 numbers.. This happens in the case of 3-way diff (when merging or rebasing) and when adding an symbolic link.

If your users report any other errors, with Backtrace showing egg-save-section-visibility or egg-restore-section-visibility, then it will be same problem, with hunk header having configuration I had not seen yet, please redirect to me and I will fix asap.