Update Docs to Point to Working Artifact Repos

Looks like Spark Packages is now dead, so lets point to Maven Central
instead.

doc/0_quick_start.md

@@ -13,17 +13,16 @@ Install and launch a Cassandra cluster and a Spark cluster.
 
 Configure a new Scala project with the Apache Spark and dependency.
 
-The dependencies are easily retrieved via the spark-packages.org website. For example, if you're using `sbt`, your build.sbt should include something like this:
+The dependencies are easily retrieved via Maven Central 
 
-    resolvers += "Spark Packages Repo" at "https://dl.bintray.com/spark-packages/maven"
-    libraryDependencies += "datastax" % "spark-cassandra-connector" % "2.4.1-s_2.11"
+    libraryDependencies += "com.datastax.spark" % "spark-cassandra-connector" % "2.4.1-s_2.11"
 
 The spark-packages libraries can also be used with spark-submit and spark shell, these
 commands will place the connector and all of its dependencies on the path of the
 Spark Driver and all Spark Executors.
 
-    $SPARK_HOME/bin/spark-shell --packages datastax:spark-cassandra-connector:2.4.1-s_2.11
-    $SPARK_HOME/bin/spark-submit --packages datastax:spark-cassandra-connector:2.4.1-s_2.11
+    $SPARK_HOME/bin/spark-shell --packages com.datastax.spark:spark-cassandra-connector_2.11:2.4.1
+    $SPARK_HOME/bin/spark-submit --packages com.datastax.spark:spark-cassandra-connector_2.11:2.4.1
 
 For the list of available versions, see:
 - https://spark-packages.org/package/datastax/spark-cassandra-connector
@@ -59,7 +58,7 @@ Run the `spark-shell` with the packages line for your version. To configure
 the default Spark Configuration pass key value pairs with `--conf`
 
     $SPARK_HOME/bin/spark-shell --conf spark.cassandra.connection.host=127.0.0.1 \
-                                --packages datastax:spark-cassandra-connector:2.4.1-s_2.11
+                                --packages com.datastax.spark:spark-cassandra-connector_2.11:2.4.1
 
 This command would set the Spark Cassandra Connector parameter 
 `spark.cassandra.connection.host` to `127.0.0.1`. Change this

doc/13_spark_shell.md

@@ -18,7 +18,7 @@ Find additional versions at [Spark Packages](https://spark-packages.org/package/
 ```bash
 cd spark/install/dir
 #Include the --master if you want to run against a spark cluster and not local mode
-./bin/spark-shell [--master sparkMasterAddress] --jars yourAssemblyJar --packages datastax:spark-cassandra-connector:2.4.1-s_2.11 --conf spark.cassandra.connection.host=yourCassandraClusterIp
+./bin/spark-shell [--master sparkMasterAddress] --jars yourAssemblyJar --packages com.datastax.spark:spark-cassandra-connector_2.11:2.4.1 --conf spark.cassandra.connection.host=yourCassandraClusterIp
 ```
 
 By default spark will log everything to the console and this may be a bit of an overload. To change this copy and modify the `log4j.properties` template file

doc/15_python.md

@@ -16,7 +16,7 @@ https://spark-packages.org/package/datastax/spark-cassandra-connector
 
 ```bash
 ./bin/pyspark \
-  --packages com.datastax.spark:spark-cassandra-connector_2.11:2.3.2
+  --packages com.datastax.spark:spark-cassandra-connector_2.11:2.4.1
 ```
 
 ### Loading a DataFrame in Python