updating changelog for release

Author: ghackebeil

CHANGELOG.rst

@@ -1,9 +1,22 @@
 Changelog
 =========
 
-0.2.0 - `master`_
+0.3.0 - `master`_
 ~~~~~~~~~~~~~~~~~
 
+0.2.0 - 2016-10-18
+~~~~~~~~~~~~~~~~~~
+
+* using chunking to speed up yield_blocks for SFTP
+* speed up clearing entries in S3 interface by chunking delete requests
+* adding helper property to access heap storage on path oram
+* use a mmap to store the top-cached heap buckets
+* replace the show_status_bar keywords by a global config item
+* express status bar units as a memory transfer rate during setup
+* tweaks to Path ORAM to make it easier to generalize to other schemes
+* changing suffix of S3 index file from txt to bin
+* updates to readme
+
 0.1.2 - 2016-05-15
 ~~~~~~~~~~~~~~~~~~