send events in a total order

Move Connection code to wmrs.go. Introduce a RWMutex to synchronize
access to the internal Wrms state. Tag each event when it is broadcast
with the next event count. Senders will order the broadcasted events.
This guarantees that no obsoltete events are ever delivered.

1 files changed, 1 insertions, 1 deletions

diff --git a/TODO.md b/TODO.md
index 49f4a23..3bb9f64 100644
--- a/TODO.md
+++ b/TODO.md
@@ -14,7 +14,7 @@
 - [X] escape HTML 
 - [X] support incremental search results
   - [X] distinguish different search queries
-- [ ] do not apply obsolete events
+- [X] do not apply obsolete events
 
 ## Web Backend