support only serializing non-None fields (i hope)

also move application to main thread, twitter connection to.. not main
thread.

now when twitter fails to connect or the connection drops, the
application continues ticking along.

1 files changed, 2 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 5d67061..6a0653c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,3 +27,5 @@ hyper-tls = "*"
 "serde_json" = "*"
 "chan" = "*"
 chrono = "0.4"
+serde = "*"
+serde_derive = "*"