Removed Dictionary from GpsHandler. Data is collected straight into JObject.
Merge branch 'master' into JP

Conflicts:
	MobileLoggerApp/MobileLoggerApp/src/mobilelogger/AbstractLogHandler.cs
	MobileLoggerApp/MobileLoggerApp/src/mobilelogger/Handlers/GpsHandler.cs
Handlers send log data using AbstractHandler into LogDatabase. Removed obsolete abstract methods and renamed sendSensorLog -> SaveSensorLog. Handler's relative urls are passed as a parameter to LogDatabase.