Add tox testing for different python and django versions. Add automatic coverage reporting.

requirements/base.txt

@@ -0,0 +1,34 @@
+Pillow==2.9.0
+PyYAML==3.11
+
+celery==3.1.18
+cssmin==0.2.0
+
+django-activity-stream==0.6.0
+django-autoadmin==1.1.0
+django-celery==3.1.16
+django-colorful==1.1.0
+django-compressor==1.5
+django-cors-headers==1.1.0
+django-filetransfers==0.1.0
+django-pure-pagination==0.2.1
+django-model-utils==2.2
+django-mptt==0.7.4
+django-qsstats-magic==0.7.2
+django-rest-swagger==0.3.4
+django-suit==0.2.13
+django-widget-tweaks==1.3
+djangorestframework==3.1.3
+djangorestframework-recursive==0.1.1
+
+fusepy==2.0.2
+
+pdfminer==20140328
+pycountry==1.10
+pytesseract==0.1.6
+python-dateutil==2.4.2
+python-gnupg==0.3.7
+python-magic==0.4.6
+pytz==2015.4
+
+sh==1.11

requirements/common.txt

@@ -1,36 +1,2 @@
+-r base.txt
 Django==1.7.10
-
-Pillow==2.9.0
-PyYAML==3.11
-
-celery==3.1.18
-cssmin==0.2.0
-
-django-activity-stream==0.6.0
-django-autoadmin==1.1.0
-django-celery==3.1.16
-django-colorful==1.1.0
-django-compressor==1.5
-django-cors-headers==1.1.0
-django-filetransfers==0.1.0
-django-pure-pagination==0.2.1
-django-model-utils==2.2
-django-mptt==0.7.4
-django-qsstats-magic==0.7.2
-django-rest-swagger==0.3.4
-django-suit==0.2.13
-django-widget-tweaks==1.3
-djangorestframework==3.1.3
-djangorestframework-recursive==0.1.1
-
-fusepy==2.0.2
-
-pdfminer==20140328
-pycountry==1.10
-pytesseract==0.1.6
-python-dateutil==2.4.2
-python-gnupg==0.3.7
-python-magic==0.4.6
-pytz==2015.4
-
-sh==1.11

requirements/testing-no-django.txt

@@ -0,0 +1,6 @@
+# requirements/testing.txt
+-r base.txt
+codecov==1.4.1
+coverage==3.7.1
+coveralls==0.5
+django-test-without-migrations==0.2