update to new versions and start "freeze"

requirements/basic_requirements.txt

@@ -2,15 +2,16 @@
 #-----------------
 
 # https://pypi.python.org/pypi/click/
+# TODO: update to 4.1!
 click>=3.3,<4.0
 
 # http://python-pillow.github.io/
 # https://pypi.python.org/pypi/Pillow/
-pillow
+pillow>=2.9,<2.10
 
 # http://pygments.org/
 # http://pypi.python.org/pypi/Pygments
-Pygments
+Pygments>=2.0,<2.1
 
 # http://pypi.python.org/pypi/pytz
 pytz
@@ -35,36 +36,37 @@ pytz
 Django>=1.7,<1.8
 
 # https://github.com/django-debug-toolbar/django-debug-toolbar
-django-debug-toolbar
+django-debug-toolbar>=1.3,<1.4
 
 # https://github.com/jezdez/django-robots/
-django-robots
+django-robots>=1.1,<1.2
 
 # https://github.com/django-compressor/django-compressor
-django-compressor
+django-compressor>=1.5,<1.6
 
 # https://github.com/etianen/django-reversion
-django-reversion>=1.8.4,<1.9
+django-reversion>=1.9,<2.0
 
 
 # Django CMS packages
 #--------------------
 
 # http://www.django-cms.org/
 # https://pypi.python.org/pypi/django-cms/
+# TODO: Update to 3.1
 django-cms>=3.0.10,<3.1
 
 # https://github.com/divio/djangocms-text-ckeditor
-djangocms-text-ckeditor>=2.6.0
+djangocms-text-ckeditor>=2.6,<2.7
 
 
 # django-filter
 #--------------
 # https://github.com/stefanfoulis/django-filer/
 # The 'cmsplugin-filer' will install, among other things:
 # django-filter, django-sekizai, easy_thumbnails
-cmsplugin-filer>=0.10.1
-django-filer>=0.9.12
+cmsplugin-filer>=0.10,<0.11
+django-filer>=0.9,<0.10
 
 
 # Django-CMS-Blog

requirements/normal_installation.txt

@@ -10,17 +10,17 @@
 #----------------------
 
 # http://pypi.python.org/pypi/python-creole
-python-creole>=1.2.1,<1.3.0
+python-creole>=1.3,<1.4
 
 # http://pypi.python.org/pypi/django-dbpreferences
 #django-dbpreferences>=0.4.2,<0.5
 
 # http://pypi.python.org/pypi/django-tools
-django-tools>=0.29
+django-tools>=0.29,<0.30
 
 # https://github.com/jedie/django-secure-js-login/
 # https://pypi.python.org/pypi/django-secure-js-login
-django-secure-js-login>=0.2
+django-secure-js-login>=0.2,<0.3
 
 # http://pypi.python.org/pypi/django-processinfo
 #django-processinfo>=0.7.0,<0.8