[Bluetooth] Remove unused variables
[SystemInfo][WIFI-Network] Fix illogical error callback and uniform to use C-API listener
Merge pull request #142 from jeez/bt-fix

[Bluetooth] Remove unused variables
Merge pull request #145 from fyraimar/master

[SystemInfo][CPU] Modify cpu usage calculation algorithm
[SystemInfo] Fix throwing exception with null callback
Merge pull request #139 from legendlee1314/master

[SystemInfo][WIFI-Network] Fix illogical error callback and uniform to use C-API listener
Merge pull request #146 from legendlee1314/upstream_master

[SystemInfo] Fix throwing exception with null callback
[Time] Add missing setFullYear, getSeconds, setSeconds
[Time] Fix secondsFromUTC() and add getTime()
[Time] Fix getDay misunderstanding

getDay() returns the day of the week (0 - 6)
getDate() returns the day of the month (1 - 31)
[Time] Refactor TimeDuration

Some tests needed to access its variables 'length' and 'unit'
[Time] Fix TZDate constructor

Some of the arguments are optional
[Time] equalsTo, earlierThan and laterThan now are throwing exceptions
Merge pull request #141 from ricardotk/wip

Time API fixes
[Time] Add _throwProperTizenException()
[Time] difference is now throwing exceptions
Merge pull request #147 from ricardotk/wip

Fix Time API
[Notification] Make constructor explicit
[Notification] Fix leaking ContextAPI object
[Notification] Remove locking from NotificationManager in mobile

Locking was necessary because each instance was running in a separated
thread, but now all of them share the same thread, so it's safe to
access shared state without locking.