Island Version checking

[mssalvatore]

Refactor

Component(s) to be refactored

• monkey_island.cc.resources.version_update
• monkey_island.cc.services.version_update

Tasks

• Add a new object called Version with attributes: (0d) @ilija-lazoroski
  • version_number - Passed in to Version() constructor
  • latest_version - A property that is populated asynchronously upon construction
  • download_url- A property that is populated asynchronously upon construction
• Construct Version() at Island startup (0d) @ilija-lazoroski
• Rename VersionUpdate to Version (0d) @ilija-lazoroski
  • Rename /api/version-update to /api/island/version
  • Rename VersionUpdate to Version
  • Rename resources/version_update.py to resources/version.py
• Use Version object in /api/island/version endpoint (0d) @ilija-lazoroski
  • Add Version object to DIContainer
  • Rename newer_version to latest_version
  • Rename current_version to version_number
  • Modify the UI to compare version_number to latest_version
  • Add Version to resources/__init__.py and shorten all imports
• Remove services/version_update.py (0d) @ilija-lazoroski
• Add authentication to /api/island/version. There are comments stating that the UI needs to know the version number before authentication, but I don't know why that's the case. (0d)