Bump version to 1.7.0

Change-Id: I5e7a655e8af44f893905760b5fbd6fd70c2d48ea
diff --git a/CMakeLists.txt b/CMakeLists.txt
index bfdcca0..15ad178 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.9)
-project(collocatordb VERSION 1.6.0 DESCRIPTION "Storing and retrieving collocation counts based on RocksDB")
+project(collocatordb VERSION 1.7.0 DESCRIPTION "Storing and retrieving collocation counts based on RocksDB")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -fno-rtti")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g")