Update changelog with 0.9.0 features

Closes #97.

Author: jamesls

CHANGELOG.rst

@@ -1,3 +1,16 @@
+0.9.0
+=====
+
+* Add support for new lines with tokens in an expression
+* Add support for `JEP 9 <http://jmespath.org/proposals/improved-filters.html>`__,
+  which introduces "and" expressions, "unary" expressions, "not" expressions,
+  and "paren" expressions
+* Fix issue with hardcoded path in ``jp.py`` executable
+  (`issue 90 <https://github.com/jmespath/jmespath.py/issues/90>`__,
+   `issue 88 <https://github.com/jmespath/jmespath.py/issues/88>`__,
+   `issue 82 <https://github.com/jmespath/jmespath.py/issues/82>`__)
+
+
 0.8.0
 =====