docs: always use dev_requirements.txt together with main version constraints in setup.py

pip isn't good at considering old constraints when installing or updating
packages later. Instead, install everything at once.

Note: pip and setuptools are usually installed automatically and could perhaps
be removed from documentation. But for now, let's keep it.

Jenkinsfile

@@ -44,8 +44,7 b' node {'
     }
     stage('setup') {
         def virtualenvscript = """$activatevirtualenv
-            pip install --upgrade -e .
-            pip install -r dev_requirements.txt
+            pip install --upgrade -e . -r dev_requirements.txt
             python setup.py compile_catalog
             """
         if (isUnix()) {

docs/contributing.rst

@@ -35,8 +35,7 b' To get started with Kallithea developmen'
         virtualenv ../kallithea-venv
         source ../kallithea-venv/bin/activate
         pip install --upgrade pip setuptools
-        pip install --upgrade -e .
-        pip install --upgrade -r dev_requirements.txt
+        pip install --upgrade -e . -r dev_requirements.txt
         kallithea-cli config-create my.ini
         kallithea-cli db-create -c my.ini --user=user --email=[e-mail] --password=password --repos=/tmp
         kallithea-cli front-end-build

scripts/make-release

@@ -19,8 +19,7 b' virtualenv -p python2 "$venv"'
 . "$venv/bin/activate"
 
 echo "Install/verify tools needed for building and uploading stuff"
-pip install --upgrade -e .
-pip install --upgrade -r dev_requirements.txt twine
+pip install --upgrade -e . -r dev_requirements.txt twine
 
 echo "Cleanup and update copyrights ... and clean checkout"
 scripts/run-all-cleanup

scripts/validate-commits

@@ -37,9 +37,7 b' for rev in $(hg log -r "$1" -T \'{node}\\n'
     virtualenv -p "$(command -v python2)" "$venv"
     source "$venv/bin/activate"
     pip install --upgrade pip setuptools
-    pip install -e .
-    pip install -r dev_requirements.txt
-    pip install python-ldap python-pam
+    pip install -e . -r dev_requirements.txt python-ldap python-pam
 
     # run-all-cleanup
     scripts/run-all-cleanup