thumbor: Add ldap and django as a dependancy.

We add this dependancy to thumbor for no use other than making an
import possible in one of the upcoming commits. Basically we wanted to
import LOCAL_UPLOADS_DIR from zproject.prod_settings or
zproject.dev_settings and prod_settings_template.py imports
django-auth-ldap (which depends on python-ldap and django).

This seems counterproductive, but it makes it possible for us to save
significant thumbor server startup time that would have been consumed
in `get-django-setting`, and once thumbor supports Python 3, we'll
probably be merging the virtualenvs anyway (in which case this change
would become a no-op).

requirements/thumbor.in

@@ -1,6 +1,9 @@
 tc-aws==6.2.7
 thumbor==6.4.2
 typing==3.6.4
+# Required for just importing settings from our main django app.
+django-auth-ldap==1.5.0
+Django==1.11.13
 
 # Below dependencies should ideally have been added to thumbor.txt by the
 # use of tools/update-locked-requirements but for some reason `pip-compile`

requirements/thumbor.txt

@@ -13,6 +13,8 @@ backports.ssl-match-hostname==3.5.0.1
 botocore==1.10.31         # via tornado-botocore
 certifi==2018.1.18
 derpconf==0.8.2           # via thumbor
+django-auth-ldap==1.5.0
+django==1.11.13
 docutils==0.14            # via botocore
 futures==3.1.1            # via thumbor
 jmespath==0.9.3           # via botocore
@@ -20,10 +22,13 @@ libthumbor==1.3.2         # via thumbor
 olefile==0.45.1           # via pillow
 piexif==1.0.13            # via thumbor
 pillow==4.3.0             # via thumbor
+pyasn1-modules==0.2.2     # via python-ldap
+pyasn1==0.4.3             # via pyasn1-modules, python-ldap
 pycryptodome==3.6.1       # via thumbor
 pycurl==7.43.0.2          # via thumbor, tornado-botocore
 python-dateutil==2.7.3    # via botocore, tc-aws
-pytz==2018.4              # via thumbor
+python-ldap==3.1.0        # via django-auth-ldap
+pytz==2018.4              # via django, thumbor
 singledispatch==3.4.0.3
 six==1.11.0               # via derpconf, libthumbor, python-dateutil, singledispatch, thumbor
 statsd==3.2.2             # via thumbor

version.py

@@ -8,4 +8,4 @@ ZULIP_VERSION = "1.8.1+git"
 # Typically, adding a dependency only requires a minor version bump, and
 # removing a dependency requires a major version bump.
 
-PROVISION_VERSION = '23.1'
+PROVISION_VERSION = '23.2'