Fixed a compiler error with std::chrono::duration

1 files changed, 28 insertions, 28 deletions

diff --git a/CHANGES.md b/CHANGES.md
index 67759c4..6660d33 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,28 +1,28 @@
-# Change Log
-
-## 2013-08-22 - Remove `boost::signal` and switch to `Simple::Signal`.
-
-According to the [benchmarks](http://timj.testbit.eu/2013/cpp11-signal-system-performance/) Simple::Signal is an order of magnitude faster than `boost::signal`. Additionally, `boost::signal` is now deprecated in favor of `boost::signal2`, which is not supported on versions of Boost on a number of platforms.
-
-This is an implementation detail and should not affect EntityX users at all.
-
-## 2013-08-18 - Destroying an entity invalidates all other references
-
-Previously, `Entity::Id` was a simple integer index (slot) into vectors in the `EntityManager`. EntityX also maintains a list of deleted entity slots that are reused when new entities are created. This reduces the size and frequency of vector reallocation. The downside though, was that if a slot was reused, entity IDs referencing the entity before reallocation would be invalidated on reuse.
-
-Each slot now also has a version number and a "valid" bit associated with it. When an entity is allocated the version is incremented and the valid bit set. When an entity is destroyed, the valid bit is cleared. `Entity::Id` now contains all of this information and can correctly determine if an ID is still valid across destroy/create.
-
-## 2013-08-17 - Python scripting, and a more robust build system
-
-Two big changes in this release:
-
-1. Python scripting support (alpha).
-    - Bridges the EntityX entity-component system into Python.
-    - Components and entities can both be defined in Python.
-    - Systems must still be defined in C++, for performance reasons.
-
-    Note that there is one major design difference between the Python ECS model and the C++ model: entities in Python can receive and handle events.
- 
-    See the [README](https://github.com/alecthomas/entityx/blob/master/entityx/python/README.md) for help, and the [C++](https://github.com/alecthomas/entityx/blob/master/entityx/python/PythonSystem_test.cc) and [Python](https://github.com/alecthomas/entityx/tree/master/entityx/python/entityx/tests) test source for more examples.
-
-2. Made the build system much more robust, including automatic feature selection with manual override.
+# Change Log

+

+## 2013-08-22 - Remove `boost::signal` and switch to `Simple::Signal`.

+

+According to the [benchmarks](http://timj.testbit.eu/2013/cpp11-signal-system-performance/) Simple::Signal is an order of magnitude faster than `boost::signal`. Additionally, `boost::signal` is now deprecated in favor of `boost::signal2`, which is not supported on versions of Boost on a number of platforms.

+

+This is an implementation detail and should not affect EntityX users at all.

+

+## 2013-08-18 - Destroying an entity invalidates all other references

+

+Previously, `Entity::Id` was a simple integer index (slot) into vectors in the `EntityManager`. EntityX also maintains a list of deleted entity slots that are reused when new entities are created. This reduces the size and frequency of vector reallocation. The downside though, was that if a slot was reused, entity IDs referencing the entity before reallocation would be invalidated on reuse.

+

+Each slot now also has a version number and a "valid" bit associated with it. When an entity is allocated the version is incremented and the valid bit set. When an entity is destroyed, the valid bit is cleared. `Entity::Id` now contains all of this information and can correctly determine if an ID is still valid across destroy/create.

+

+## 2013-08-17 - Python scripting, and a more robust build system

+

+Two big changes in this release:

+

+1. Python scripting support (alpha).

+    - Bridges the EntityX entity-component system into Python.

+    - Components and entities can both be defined in Python.

+    - Systems must still be defined in C++, for performance reasons.

+

+    Note that there is one major design difference between the Python ECS model and the C++ model: entities in Python can receive and handle events.

+ 

+    See the [README](https://github.com/alecthomas/entityx/blob/master/entityx/python/README.md) for help, and the [C++](https://github.com/alecthomas/entityx/blob/master/entityx/python/PythonSystem_test.cc) and [Python](https://github.com/alecthomas/entityx/tree/master/entityx/python/entityx/tests) test source for more examples.

+

+2. Made the build system much more robust, including automatic feature selection with manual override.