Missed a couple tool imports of the eggs modules.

tools/data_source/biomart_filter.py

@@ -1,5 +1,6 @@
 # Greg Von Kuster
 import urllib
+from galaxy import eggs
 from galaxy.datatypes import sniff
 from galaxy import datatypes, config
 import tempfile, shutil

tools/data_source/ucsc_tablebrowser.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 #Retreives data from UCSC and stores in a file. UCSC parameters are provided in the input/output file.
 import urllib, sys, os, gzip, tempfile, shutil
+from galaxy import eggs
 from galaxy.datatypes import data
 
 assert sys.version_info[:2] >= ( 2, 4 )