Revert "Update required Django version to Django 1.10.6"

This reverts commit c03ae5649b.

requirements/common.txt

@@ -1,2 +1,2 @@
 -r base.txt
-Django==1.10.6
+Django==1.10.5

setup.py

@@ -56,38 +56,39 @@ def find_packages(directory):
     return packages
 
 install_requires = """
-Pillow==4.0.0
+Django==1.9.11
-PyYAML==3.12
+Pillow==3.1.2
-celery==3.1.24
+PyYAML==3.11
+celery==3.1.19
 cssmin==0.2.0
-Django==1.10.6
+django-activity-stream==0.6.0
-django-activity-stream==0.6.3
 django-autoadmin==1.1.1
 django-celery==3.1.17
-django-colorful==1.2
+django-colorful==1.1.0
-django-compressor==2.1
+django-compressor==2.0
-django-cors-headers==1.2.2
+django-cors-headers==1.1.0
 django-downloadview==1.9
-django-formtools==2.0
+django-filetransfers==0.1.0
+django-formtools==1.0
 django-pure-pagination==0.3.0
-django-model-utils==2.6.1
+django-model-utils==2.4
-django-mptt>=0.8.7
+django-mptt>=0.8.0
 django-qsstats-magic==0.7.2
-django-rest-swagger==0.3.10
+django-rest-swagger==0.3.4
-django-stronghold==0.2.8
+django-stronghold==0.2.7
-django-suit==0.2.23
+django-suit==0.2.16
 django-widget-tweaks==1.4.1
 djangorestframework==3.3.2
 djangorestframework-recursive==0.1.1
-fusepy==2.0.4
+fusepy==2.0.2
 pdfminer==20140328
-pycountry==1.20
+pycountry==1.19
-pyocr==0.4.5
+pytesseract==0.1.6
-python-dateutil==2.5.3
+python-dateutil==2.4.2
 python-gnupg==0.3.9
-python-magic==0.4.12
+python-magic==0.4.10
-pytz==2016.7
+pytz==2015.4
-sh==1.12.9
+sh==1.11
 """.split()
 
 try: