Update version and CHANGELOG for 5.5.3.

Author: danpat

CHANGELOG.md

@@ -1,3 +1,13 @@
+# 5.5.3
+  - Changes from 5.5.2
+    - Bugfixes:
+      - PR #3504 - debug tiles were very slow to generate due to unnecessarily copying data in a hot loop.
+      - PR #3556 - fix an assertion in the walking profile triggered by tight spiral stairwells
+      - PR #3469 - don't assert when identical coordinates are supplied to some calculations - OSM data contains these, we shouldn't crash.
+    - Enhancements:
+      - backported 6ea9f9fdf19 - when anticipating upcoming lanes, consider how many lanes need to be crossed to get there.
+      - when using osrm-datastore, it will attempt to clean up locks if it crashes.
+
 # 5.5.2
   - Changes from 5.5.1
     - Revert smarter map-matching search radius.  The increased radius causes performance degredation when map-matching against non-car road networks with more edges.

CMakeLists.txt

@@ -53,7 +53,7 @@ endif()
 project(OSRM C CXX)
 set(OSRM_VERSION_MAJOR 5)
 set(OSRM_VERSION_MINOR 5)
-set(OSRM_VERSION_PATCH 2)
+set(OSRM_VERSION_PATCH 3)
 set(OSRM_VERSION "${OSRM_VERSION_MAJOR}.${OSRM_VERSION_MINOR}.${OSRM_VERSION_PATCH}")
 
 add_definitions(-DOSRM_PROJECT_DIR="${CMAKE_CURRENT_SOURCE_DIR}")