Display score history

[incinn]

• minor visual changes to check command output
• minor cleanup of ingots command output
• adds descriptive text in prospect response when prospect period is over
• refactor and cleanup of score command
  • adds descriptive text with useful links
  • displays score history for 7d, 14d and 30d periods
  • displays next rank with count of points left required to reach it
  • reworked the rank progress section with new progress bar
  • fixes a number of issues with God members and their alignment (or lack of it)
• refactor and cleanup of breakdown command
  • adds descriptive text with useful links
  • fixes to expiry and cleanup
  • reduces lifetime to 60 seconds
  • clearly displays target member's name and rank
  • displays corrected score distribution and percentage (eg: <skilling_points>/<total_points>
    (X%))
  • fixes a number of issues with God members and their alignment (or lack of it)
  • improves page buttons
  • adds a close button to let the user explicitly dismiss it
• adds a bunch of new tests, reworks some old tests, and removes some irrelevant tests

resolves #223