Rewords comment describing WRITETIME/TTL settings (#238)

* Rewords comment describing WRITETIME/TTL settings
* Stop tracking Eclipse project files
---------
Co-authored-by: Arvydas Jonusonis <[email protected]>

Author: arvy

.classpath

@@ -108,16 +108,17 @@ spark.cdm.connect.target.password      cassandra
 #-----------------------------------------------------------------------------------------------------------
 spark.cdm.schema.origin.keyspaceTable                keyspace_name.table_name
 
-# Max TTL value of all non-PK columns will be used for insert on target
+
+# Max TTL value of all TTL-eligible non-PK columns will be used for insert on target
 spark.cdm.schema.origin.column.ttl.automatic         true
 
-# Max TTL value of specified non-PK columns will be used for insert on target (overrides automatic setting)
+# Max TTL value of specified (non-PK) columns will be used for insert on target (overrides automatic setting)
 #spark.cdm.schema.origin.column.ttl.names             data_col1,data_col2,...
 
-# Max WRITETIME value of all non-PK columns will be used for insert on target
+# Max WRITETIME value of all WRITETIME-eligible non-PK columns will be used for insert on target
 spark.cdm.schema.origin.column.writetime.automatic   true
 
-# Max WRITETIME value of specified non-PK columns will be used for insert on target  (overrides automatic setting)
+# Max WRITETIME value of specified (non-PK) columns will be used for insert on target  (overrides automatic setting)
 #spark.cdm.schema.origin.column.writetime.names       data_col1,data_col2,...
 #spark.cdm.schema.origin.column.names.to.target       partition_col1:partition_col_1,partition_col2:partition_col_2,...
 spark.cdm.schema.ttlwritetime.calc.useCollections    false