Version upgrade to 2.4.0 (#1742)

Author: pranavrth

docs/conf.py

@@ -35,7 +35,7 @@
 # built documents.
 #
 # The short X.Y version.
-version = '2.4.0rc3'
+version = '2.4.0'
 # The full version, including alpha/beta/rc tags.
 release = version
 ######################################################################

setup.py

@@ -75,7 +75,7 @@ def get_install_requirements(path):
 setup(name='confluent-kafka',
       # Make sure to bump CFL_VERSION* in confluent_kafka/src/confluent_kafka.h
       # and version in docs/conf.py.
-      version='2.4.0rc3',
+      version='2.4.0',
       description='Confluent\'s Python client for Apache Kafka',
       author='Confluent Inc',
       author_email='[email protected]',

src/confluent_kafka/src/confluent_kafka.h

@@ -43,7 +43,7 @@
  *  MM=major, mm=minor, RR=revision, PP=patchlevel (not used)
  */
 #define CFL_VERSION     0x02040000
-#define CFL_VERSION_STR "2.4.0rc3"
+#define CFL_VERSION_STR "2.4.0"
 
 /**
  * Minimum required librdkafka version. This is checked both during