Revert "Incrementing snapshot version to 1.1.1-SNAPSHOT."

This reverts commit dab6bd3e8c3b86d37c98e5173d702227ed34e443.
diff --git a/.parquetcppversion b/.parquetcppversion
index bc5594a..51f7e73 100644
--- a/.parquetcppversion
+++ b/.parquetcppversion
@@ -1 +1 @@
-1.1.1-SNAPSHOT
+1.0.1-SNAPSHOT