gstlal_inspiral_lvalert_omegascan, gstlal_inspiral_lvalert_sngls_plotter: fix missing imports

gstlal-inspiral/bin/gstlal_inspiral_lvalert_omegascan

@@ -27,6 +27,7 @@ from pylal.datatypes import LIGOTimeGPS
 import sys
 import tempfile
 import urllib
+import urlparse
 import logging
 import time
 from optparse import OptionParser

gstlal-inspiral/bin/gstlal_inspiral_lvalert_sngls_plotter

@@ -22,6 +22,8 @@ import os
 import subprocess
 import re
 import time
+import logging
+import urlparse
 import json
 from optparse import OptionParser
 import numpy