[#1447] Yekkanti - Refactored and optimized the sync process for single child
[#1447] Yekkanti - Changed the image/audio sync logic so that multiple downloads will not happen
#1447 Suganthi|Yekkanti Fixed the change log defect partially
[#1447] Yekkanti - Refactored good amount of code around change logs handling
[#1447] Yekkanti|Kavitha Changed the logic to sync media to reduce number of requests to server
FIX - Ashok  - Fixed the intermident connection issue
[#1477] Yekkanti | Kavitha Added more tests on to changelogs and media sync
Merge branch 'master' of github.com:rapidftr/RapidFTR---Android
[#1477] Yekkanti - Remvoed unused test and fixed a compilation issue becuase of merge
FIX - Ashok - Added toast msg when n/w goes down and if sync is in progress
FIX - Ashok - Added test for intermident n/w issue
FIX - Ashok - Adding the unregister receiver in try catch to prevent it braking app if receiver is not registered
Merge branch 'master' of git://github.com/rapidftr/RapidFTR---Android

Conflicts:
	RapidFTR-Android/src/main/java/com/rapidftr/activity/RapidFtrActivity.java
	RapidFTR-Android/src/main/java/com/rapidftr/activity/ViewChildActivity.java
	RapidFTR-Android/src/main/java/com/rapidftr/service/ChildService.java
	RapidFTR-Android/src/test/java/com/rapidftr/service/ChildServiceTest.java