Update the images and .spec to use sphinx instead of pandoc

docker/biboumi-test/alpine/Dockerfile

@@ -26,6 +26,7 @@ RUN apk add --no-cache g++\
     python3-dev\
     automake\
     autoconf\
+    libffi-dev\
     flex\
     bison\
     libltdl\

docker/biboumi-test/debian/Dockerfile

@@ -1,7 +1,7 @@
 # This Dockerfile creates a docker image suitable to run biboumi’s build and
 # tests.  For example, it can be used on with gitlab-ci.
 
-FROM docker.io/debian:latest
+FROM docker.io/debian:buster
 
 ENV LC_ALL C.UTF-8
 
@@ -22,8 +22,8 @@ RUN apt install -y g++\
     libidn11-dev\
     uuid-dev\
     libsystemd-dev\
-    pandoc\
-    libasan3\
+    python3-sphinx\
+    libasan5\
     libubsan0\
     git\
     python3-lxml\
@@ -46,7 +46,7 @@ RUN apt install -y g++\
 RUN git clone https://github.com/randombit/botan.git && cd botan && ./configure.py --prefix=/usr && make -j8 && make install && rm -rf /botan
 
 # Install slixmpp, for e2e tests
-RUN git clone https://github.com/saghul/aiodns.git && cd aiodns && git checkout 7ee13f9bea25784322~ && python3 setup.py build && python3 setup.py install && git clone git://git.louiz.org/slixmpp && pip3 install pyasn1==0.4.2 && cd slixmpp && python3 setup.py build && python3 setup.py install
+RUN git clone https://github.com/saghul/aiodns.git && cd aiodns && git checkout 7ee13f9bea25784322~ && python3 setup.py build && python3 setup.py install && git clone git://git.louiz.org/slixmpp && pip3 install pyasn1 && cd slixmpp && python3 setup.py build && python3 setup.py install
 
 RUN useradd tester -m
 

docker/biboumi-test/fedora/Dockerfile

@@ -20,7 +20,7 @@ RUN dnf --refresh install -y\
     libidn-devel\
     uuid-devel\
     systemd-devel\
-    pandoc\
+    python3-sphinx\
     libasan\
     libubsan\
     git\

packaging/biboumi.spec.cmake

@@ -16,7 +16,7 @@ BuildRequires: postgresql-devel
 BuildRequires: botan2-devel
 BuildRequires: cmake
 BuildRequires: systemd
-BuildRequires: pandoc
+BuildRequires: python3-sphinx
 
 %global _hardened_build 1
 
@@ -67,6 +67,7 @@ make check %{?_smp_mflags}
 * ${RPM_DATE} Le Coz Florent <louiz@louiz.org> - ${RPM_VERSION}-1
 - Build latest git revision
 - Build against botan2
+- Build with sphinx instead of pandoc
 
 * Fri Jun 1 2018 Le Coz Florent <louiz@louiz.org> - 8.3-1
   Update to version 8.3