More caching...
 On branch dbcache
	modified:   src/uk/ac/kcl/odo/mobileminer/data/MinerData.java
	modified:   src/uk/ac/kcl/odo/mobileminer/data/WriteCache.java
	modified:   src/uk/ac/kcl/odo/mobileminer/miner/MinerService.java
	modified:   src/uk/ac/kcl/odo/mobileminer/miner/NotificationService.java
	modified:   src/uk/ac/kcl/odo/mobileminer/miner/TrafficWatcher.java