Moved clock into separate documents module.

src/lib.rs

@@ -1,4 +1,5 @@
 mod data_director;
+mod documents;
 mod field;
 mod message;
 mod mtterror;
@@ -6,10 +7,9 @@ mod name;
 mod router;
 
 use data_director::{Include, Path, RegMsg, Register};
+use documents::clock::Clock;
 use field::{Field, FieldType};
-use message::{
-    Action, Addition, CalcValue, Calculation, Clock, CreateDoc, Message, Operand, Session,
-};
+use message::{Action, Addition, CalcValue, Calculation, CreateDoc, Message, Operand, Session};
 pub use message::{MsgAction, Query};
 use name::{Name, NameType};
 use router::Queue;