[Problem] The package cannot be built with gcc-4.8.
[Cause] Missing #include statements.
[Solution] Add the missing #include statements.
[Verification] Build package both with current (GCC-4.5) and (GCC-4.8) version of compiler.
Change-Id: I9acb3034aee32ae1481315bf56673104506485a7
#include <directory_api.h>
#include <sys/stat.h>
+#include <unistd.h>
#include <dirent.h>
#include <fstream>
#include <dpl/log/log.h>
#include <cstring>
#include <string>
#include <sstream>
+#include <unistd.h>
#include <dpl/assert.h>
#include <appcore-common.h> //TODO is it necessary here?
#include <pcrecpp.h>