update changelog entry for 0.7.0 to point out new download locations

CHANGELOG.md

@@ -1,4 +1,12 @@
 ## Release 0.7.0
 
-This is the first release assigned a version number. See the README at
-https://github.com/zettio/weave#readme for more information.
+This is the first release assigned a version number.
+
+When downloading weave you now have the following choices...
+
+1. a specific version, e.g. https://github.com/zettio/weave/releases/download/v0.7.0/weave
+2. latest released version: https://github.com/zettio/weave/releases/download/latest_release/weave
+3. most recent 'master' commit: https://raw.githubusercontent.com/zettio/weave/master/weave
+
+Previously the only documented download location was (3). We recommend
+that any automated scripts using that be changed to either (1) or (2).