Implement entry annotation, review and versioning system about vulncode-db HOT 3 CLOSED

Added e6ce768 which fixes most known bugs with the review process.
A few things that are missing:

• Add unassign option for reviewers after they have assigned themselves
• Automatically unassign reviewer from reivews after longer time of inactivity (or add manual reassign option on author side?)
• http://127.0.0.1:8080/profile/proposal/30232/edit - Read button doesn't make much sense
• http://127.0.0.1:8080/CVE-2019-11565/edit - Edit entry page should throw an error if there already exists a pending proposal.
• Indicator colors don't match with colors in "My proposals" or "Review" lists.

from vulncode-db.

• Added 7891263 fixing the color coding and simplifying the code by adding a NEEDS_IMPROVEMENT state.
• Added 08b2fb4 which adds an unassign from review option, UI changes and smaller bug fixes.

Missing items and known bugs:

• Reviewer assignment/unassignment overwrites a potentially already existing reviewer_id which in turn means that the origin of the latest review_feedback is unclear. One option to fix this is to add a new column that indicates the currently assigned reviewer with assigned_reviewer and rename the reviewer_id column to feedback_reviewer_id.
• It's possible to submit the same content for an entry even though there is feedback / it needs improvement. There should be a modification check.
• Automatically unassign reviewer from reivews after longer time of inactivity (or add "request reassignment" option on author side?)

from vulncode-db.

Change detection was implemented. As this was the only major missing part of this issue, I'll close it and create a follow up for the last item.

from vulncode-db.