Fix C++ wrapper generation

wrappers/cpp/class_impl.mustache

@@ -16,7 +16,7 @@ along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
 
-#include "linphone.hh"
+#include "linphone++/linphone.hh"
 
 using namespace {{{namespace}}};
 

wrappers/cpp/genwrapper.py

@@ -651,14 +651,14 @@ def main():
 	srcdir = args.outputdir + '/src'
 	
 	try:
-		os.mkdir(includedir)
+		os.makedirs(includedir)
 	except OSError as e:
 		if e.errno != errno.EEXIST:
 			print("Cannot create '{0}' dircetory: {1}".format(includedir, e.strerror))
 			sys.exit(1)
 	
 	try:
-		os.mkdir(srcdir)
+		os.makedirs(srcdir)
 	except OSError as e:
 		if e.errno != errno.EEXIST:
 			print("Cannot create '{0}' dircetory: {1}".format(srcdir, e.strerror))