server/general: improve pylint score

+ incorporate some in-house rules - no more useless doc strings...

server/.pylintrc

@@ -0,0 +1,14 @@
+[basic]
+method-rgx=[a-z_][a-z0-9_]{2,30}$|^test_
+
+[variables]
+dummy-variables-rgx=_|dummy
+
+[format]
+max-line-length=90
+
+[messages control]
+disable=missing-docstring,no-self-use,too-few-public-methods
+
+[typecheck]
+generated-members=add|add_all