Fix error in parsing of event metadata

Dependencies

• [2] XJ4EYMIH Let curl prompt for http password, rather than bash.
• [3] UILI6PIL The route-based logStart/logStop is nicer.
• [4] HYV3VQAD Fix a couple of stupid typos.
• [5] BWN72T44 Don't accept work timestamp from an external source.
• [6] O722AOKE Add route to allow crediting of events to users/projects.
• [7] SPJCFHXW Update shell scripts to point to https://aftok.com and prompt for input.
• [*] W35DDBFY Factor common JSON conversions up into client lib module.
• [*] 2G3GNDDU Event logging is now functioning in postgres.

Change contents

• replacement in lib/Aftok/Json.hs at line 254
  [4.312]→[4.312:347](∅→∅)
  − eventMeta' <- x .: "eventMeta"
  [4.263]

  [3.138]
  + eventMeta' <- x .:? "eventMeta"
• replacement in scripts/log_end.sh at line 6
  [4.528]→[4.528:561](∅→∅)
  − read -p "BTC Address: " BTC_ADDR
  [4.528]

  [4.561]
  + read -p "User ID: " UID
• replacement in scripts/log_end.sh at line 8
  [4.562]→[2.311:400](∅→∅)
  − curl -v -k -u $USER -X POST -d '' "https://aftok.com/projects/$PROJECT/logEnd/$BTC_ADDR"
  [4.562]
  + curl -v -k -u $USER -X POST -d "{\"creditTo\": {\"creditToUser\": \"$UID\"}}" "https://aftok.com/projects/$PID/logEnd"
• replacement in scripts/log_start.sh at line 5
  [4.738]→[4.738:802](∅→∅)
  − read -p "Project ID: " PROJECT

  − read -p "BTC Address: " BTC_ADDR
  [4.738]

  [4.802]
  + read -p "Project ID: " PID

  + read -p "User ID: " UID
• replacement in scripts/log_start.sh at line 8
  [4.803]→[2.402:493](∅→∅)
  − curl -v -k -u $USER -X POST -d '' "https://aftok.com/projects/$PROJECT/logStart/$BTC_ADDR"
  [4.803]
  + curl -v -k -u $USER -X POST -d "{\"creditTo\": {\"creditToUser\": \"$UID\"}}" "https://aftok.com/projects/$PID/logStart"