Added formal branch policy.
Clarified PR vs. issue + expected branch deletion.
Add optionalDependencies badge to README.md

Fixed by alanshaw/david-www#123
Merge pull request #176 from sun/policy-branch

Formalize the public feature/topic branch policy
Merge pull request #193 from markcarver/optional_dependencies

Add optionalDependencies badge to README.md
Fixed inline.image plugin operates on countless of .file DOM elements of patchReviewer.
Merge pull request #194 from sun/patchreview-inlineimage-clash

inline.image plugin operates on countless of .file DOM elements of patchReviewer
Fixed predicted new comment number is hard to recognize visually.
Merge pull request #195 from sun/comment-number-recognition

Predicted new comment number is hard to recognize visually
Removed unused prettify_line variable.
Classify old diff lines containing a comment as '.old.comment'.
Minor diff style cleanups (no visual changes).
Merge pull request #196 from sun/patchreview-cleanups

Minor patchreviewer cleanups
Fixed '@c' and '@co' autocompletes into '@Comment #N'.
Fixed additional instances of node/comment author selectors for new d.o markup.
Merge pull request #197 from sun/autocomplete-user

Username autocompletion is broken for names starting with "Co"
Dreditor 1.2.8
Minor changes to RELEASE.md [ci skip]
Merge pull request #198 from markcarver/release_doc

Minor changes to RELASE.md.
Added syntax highlighting for renames and copies in diff file headers.