Move the compat module from ipalib to ipapython.

Fixes import problems trying to import just ipalib/compat.py.

https://fedorahosted.org/freeipa/ticket/754

ipapython/certdb.py

@@ -21,7 +21,7 @@ from ipapython import ipautil
 from ipapython import nsslib
 from ipalib import pkcs10
 import tempfile
-from ipalib.compat import sha1
+from ipapython.compat import sha1
 import shutil
 import os
 

ipaserver/install/certs.py

@@ -46,7 +46,7 @@ import nss.nss as nss
 
 from ipalib import api
 
-from ipalib.compat import sha1
+from ipapython.compat import sha1
 
 # Apache needs access to this database so we need to create it
 # where apache can reach

ipaserver/rpcserver.py

@@ -31,7 +31,7 @@ from ipalib.errors import PublicError, InternalError, CommandError, JSONError, C
 from ipalib.request import context, Connection, destroy_context
 from ipalib.rpc import xml_dumps, xml_loads
 from ipalib.util import make_repr, parse_time_duration
-from ipalib.compat import json
+from ipapython.compat import json
 from ipalib.session import session_mgr, read_krbccache_file, store_krbccache_file, delete_krbccache_file, fmt_time, default_max_session_lifetime
 from ipalib.backend import Backend
 from ipalib.krb_utils import krb5_parse_ccache, KRB5_CCache, krb5_format_tgt_principal_name, krb5_format_service_principal_name, krb_ticket_expiration_threshold

tests/test_ipaserver/test_rpcserver.py

@@ -25,7 +25,7 @@ from tests.util import create_test_api, assert_equal, raises, PluginTester
 from tests.data import unicode_str
 from ipalib import errors, Command
 from ipaserver import rpcserver
-from ipalib.compat import json
+from ipapython.compat import json
 
 
 class StartResponse(object):