Updating st2.conf.sample for ldap auth backend update running 'make configgen'

Author: hnanchahal

conf/st2.conf.sample

@@ -77,7 +77,7 @@ token_ttl = 86400
 # Standalone mode options - options below only apply when auth service is running in the standalone
 # mode.
 
-# Authentication backend to use in a standalone mode. Available backends: flat_file.
+# Authentication backend to use in a standalone mode. Available backends: ldap, flat_file.
 backend = flat_file
 # JSON serialized arguments which are passed to the authentication backend in a standalone mode.
 backend_kwargs = None

requirements.txt

@@ -17,6 +17,7 @@ flex==6.14.0
 git+https://github.com/StackStorm/logshipper.git@stackstorm_patched#egg=logshipper
 git+https://github.com/StackStorm/orquesta.git@v1.2.0#egg=orquesta
 git+https://github.com/StackStorm/st2-auth-backend-flat-file.git@master#egg=st2-auth-backend-flat-file
+git+https://github.com/StackStorm/st2-auth-ldap.git@master#egg=st2-auth-ldap
 gitpython==2.1.15
 greenlet==0.4.15
 gunicorn==19.9.0