Merge branch 'devel/tizen' into tizen_3.0

Merge branch 'devel/tizen' into tizen_3.0

* devel/tizen:
  Version 0.9.8
  Added code to query HeartDB every 10 minutes
  Modify recnet battery usage to return data after booting, if device never fully charged.
  Resolved a bug which gives negative battery values on process being killed and re-launched When an app is killed and re-launched,the CPU times are reset, the difference is negative, so checked for non-negative differences
  [my-place] DEBUG_MODE simplification.
  [my-place] Change db queries async -> sync.
  [my-place] Change debug flag from TIZEN_ENGINEER_MODE to DEBUG_MODE.

Change-Id: Idce7c557507d77488f42b9b06e08a921720a03a4
Signed-off-by: Mu-Woong Lee <muwoong.lee@samsung.com>