Add CHANGES, RELEASE-NOTES for 0.4

Also ensure they are included in the binary releases.

git-svn-id: https://svn.apache.org/repos/asf/incubator/wave/trunk@1490943 13f79535-47bb-0310-9956-ffa450edef68
Bump version number in build.properties

git-svn-id: https://svn.apache.org/repos/asf/incubator/wave/trunk@1490944 13f79535-47bb-0310-9956-ffa450edef68
Forgot build.properties needs to be in binary release.

git-svn-id: https://svn.apache.org/repos/asf/incubator/wave/trunk@1490945 13f79535-47bb-0310-9956-ffa450edef68
Add thumbnail_patterns, and platforms to binary release.

git-svn-id: https://svn.apache.org/repos/asf/incubator/wave/trunk@1490946 13f79535-47bb-0310-9956-ffa450edef68
Update NOTICE to Apache style.

git-svn-id: https://svn.apache.org/repos/asf/incubator/wave/trunk@1490947 13f79535-47bb-0310-9956-ffa450edef68
Update libidn to 1.26 (Apache licensed)

git-svn-id: https://svn.apache.org/repos/asf/incubator/wave/trunk@1490948 13f79535-47bb-0310-9956-ffa450edef68
Add TM to logo, add some missing license headers

git-svn-id: https://svn.apache.org/repos/asf/incubator/wave/trunk@1490949 13f79535-47bb-0310-9956-ffa450edef68