Update change log and spec for wrt-plugins-tizen_0.2.84

Update change log and spec for wrt-plugins-tizen_0.2.84

Changed Modules : Messaging, Call, LBS and Contact

[Version] 0.2.84
[Project] GT-I8800, Public
[Title] SEL Verification
[Team] WebAPI
[BinType] PDA
[Customer] Open

[Issue#] N_SE-10078
[Problem] Messaging - addDraftMessage is success with small receipt
number
[Cause] exception is not thrown for invaild number
[Solution] throw exception on invalid case

[Issue#] N/A
[Problem] Call - Can not remove all events listener in destructor.
[Cause] N/A
[Solution] Fixed bug of increase of iterator pointer.

[Issue#] N/A
[Problem] LBS - Some test cases are failed
[Cause] input parameter is not handled properly.
[Solution] modify code

[Issue#] N_SE-10181
[Problem] Messaging - Crash during addMessageChangeListener Lto new
messages
[Cause] wrong array index
[Solution] fix the last array index from mesgId to mesg count

[Issue#] N/A
[Problem] Contact - getting wrong category list from find function
[Cause] Calc wrong index from list
[Solution] Fixed index inc rule

[SCMRequest] N/A

Change-Id: Ieac8df0ce242d5ad0c0e49326f76b425e425eceb