keep all task related artifacts in edx.analytics.tasks

We want to put other stuff in edx.analytics, so we move all of our batch job related logic in to a subpackage.

Change-Id: I5dc93e5e183e61e01c4dc910f391ddd39203d987
Fixes: AN-508

.gitreview

+[gerrit]
+host=review.edx.org
+port=29418
+project=edx/analytics-tasks.git
+defaultbranch=master

edx/analytics/tasks/course_enroll.py

@@ -6,7 +6,7 @@ import luigi.hadoop
 import luigi.s3
 import luigi.hdfs
 
-import edx.analytics.util.eventlog as eventlog
+import edx.analytics.tasks.util.eventlog as eventlog
 from edx.analytics.tasks.pathutil import get_target_for_url, PathSetTask
 
 import logging
@@ -190,8 +190,7 @@ class BaseCourseEnrollmentTask(luigi.hadoop.JobTask):
         # is used for parsing events and date conversion.
         import boto
         import cjson
-        import edx.analytics.util
-        return [boto, edx.analytics.util, cjson]
+        return [boto, cjson]
 
 
 class CourseEnrollmentEventsPerDay(CourseEnrollmentEventsPerDayMixin, BaseCourseEnrollmentTask):

edx/analytics/reports/tests/test_enrollments.py → edx/analytics/tasks/reports/tests/test_enrollments.py

@@ -10,8 +10,8 @@ from mock import MagicMock
 from numpy import isnan
 import pandas
 
-from edx.analytics.reports.enrollments import EnrollmentsByWeek
-from edx.analytics.reports.enrollments import ExternalURL
+from edx.analytics.tasks.reports.enrollments import EnrollmentsByWeek
+from edx.analytics.tasks.reports.enrollments import ExternalURL
 
 
 class FakeTarget(object):

edx/analytics/util/tests/test_eventlog.py → edx/analytics/tasks/util/tests/test_eventlog.py

@@ -5,7 +5,7 @@ Tests for utilities that parse event logs.
 
 import unittest
 
-import edx.analytics.util.eventlog as eventlog
+import edx.analytics.tasks.util.eventlog as eventlog
 
 
 class CourseIdTest(unittest.TestCase):

setup.cfg

@@ -17,12 +17,12 @@ data_files =
 
 [entry_points]
 console_scripts =
-    launch-task = edx.analytics.tasks.main:main
-    remote-task = edx.analytics.tasks.remote:main
+    launch-task = edx.analytics.tasks.launchers.main:main
+    remote-task = edx.analytics.tasks.launchers.remote:main
 
 edx.analytics.tasks =
     s3-copy = edx.analytics.tasks.s3:S3Copy
     s3-sync = edx.analytics.tasks.s3:S3Sync
     sync-events = edx.analytics.tasks.eventlogs:SyncEventLogs
-    enrollments-report = edx.analytics.reports.enrollments:EnrollmentsByWeek
+    enrollments-report = edx.analytics.tasks.reports.enrollments:EnrollmentsByWeek
     course-enroll = edx.analytics.tasks.course_enroll:CourseEnrollmentChangesPerDay