use relative directories path instead of hardcoded ones.

use relative directories path instead of hardcoded ones.

In Tizen 3.0 application packages can be installed per user.
It means that application working directory must be discovered on runtime
instead of using fixed paths. Patch introduces new functions for getting
absoulte path to resource directories using Tizen app framework api.

Change-Id: I53661a413791eeacb24f57584dc2ca54a8f10ab2
Signed-off-by: Lukasz Stanislawski <l.stanislaws@samsung.com>