(#2783) - clean up putAttachment docs
(#2777) - Add Datalog to external projects
(#2623) - Store last_seq so compaction only traverses changed documents
(#2781) - rollback to websql on safari/ios 8
(#2781) - 3.0.6 blog post and release
(#1653) - server sent events
(#2798) - add some attachment tests
(#2768) - basic opt-in replication - retry
(#2797) - Simplify getting started with since: 'now'
Revert "(#2798) - add some attachment tests"

This reverts commit 976c606c12b0da7217e0cad4fae431cef0d7129d.
(#2816) - Disable SSE replication for chrome failures
(#2798) - Add some attachment tests
(#2803) - throw 412s when stubs are missing
(#2831) - updated supported browsers list

We are definitely passing in Android 4.0, we explicitly
test Travis in Safari 6 and iOS 7, so I've updated the
list of supported browsers accordingly.
(#2779) - test for deleted docs
(#2779) - fix undeletion with wrong rev