Release version 0.8.0

Release version 0.8.0

Changes:
 - Set smack label of pkg_upgrade
 - Implement request handlers
 - Fix static analysis issue
 - Change prefix rsc to res
 - Add DB backup unit test for pkg_upgrade
 - Merge "Set smack label of pkg_upgrade" into tizen
 - Implement CreateDir request handler
 - Add checking routine to prevent path traverse attack
 - Implement EventSignalSender
 - Implement EventSignalSender unit test
 - Change directory policy

Change-Id: I9cc80a51d2ecf8307f3a4908f7a040f381933b18
Signed-off-by: Ilho Kim <ilho159.kim@samsung.com>