add ldv_migrate script

ldv_migrate/ldv_migrate/migrate_ldvadmin_to_ldvspec.py

@@ -23,11 +23,16 @@ import sys
 import math
 
 try:
+    # local imports
     import connection.retrieve_db_connection as connector
+    from ldv_specification_interface import LDVSpecInterface
+
 except:
+    # installation imports
     import ldv_migrate.connection.retrieve_db_connection as connector
+    from ldv_migrate.ldv_specification_interface import LDVSpecInterface
+
 
-from ldv_specification_interface import LDVSpecInterface
 
 logger = logging.getLogger(__file__)
 handler = logging.StreamHandler(sys.stdout)