Updated 0.8.1 release date in CHANGELOG

Author: tleonhardt

CHANGELOG.md

@@ -1,4 +1,4 @@
-## 0.8.1 (March TBD, 2018)
+## 0.8.1 (March 9, 2018)
 
 * Bug Fixes
     * Fixed a bug if a non-existent **do_*** method was added to the ``exclude_from_help`` list
@@ -11,7 +11,7 @@
     * Added option for persistent readline history
         * See [persistent_history.py](https://github.com/python-cmd2/cmd2/blob/master/examples/persistent_history.py) for an example
         * See the [Searchable command history](http://cmd2.readthedocs.io/en/latest/freefeatures.html#searchable-command-history) section of the documentation for more info
-    * Improved PyPI packaging by including unit tests and examples in the tarball
+    * Improved PyPI packaging by including unit tests and examples ain the tarball
     * Improved documentation to make it more obvious that **poutput()** should be used instead of **print()**
     * ``exclude_from_help`` and ``excludeFromHistory`` are now instance instead of class attributes
     * Added flag and index based tab completion helper functions