Resurrect etimedate:

- Redesigned Calendar widget, many new options
- Killed a lot of code by porting to edelib::Date (timezone handling is still 
internal)
- Added syncing with time servers using ntpdate

Jamfile

@@ -23,3 +23,4 @@ SubInclude TOP eimage ;
 SubInclude TOP datas ;
 SubInclude TOP docs ;
 SubInclude TOP efiler ;
+SubInclude TOP etimedate ;