Read-only support, version 1.0
==============================
Committed:
* hg log
  + user, branch, limit
  - date, 
  + filename
  + filename and follow history

  
* hg manifest (aka ls)

  
* hg status
  - copies for revisions


* hg cat


Proposed:
- LogCommand.revision(int... rev)+ to walk selected revisions only (list->sort(array) on execute, binary search)
- LogCommand.before(Date date) and .after()
- LogCommand.match() to specify pattern, no selected file()s only?
* RepositoryFacade and CommandContext  

Read-only support, version 1.1
==============================
Committed:
* http, https and ssh connections:
  
* incoming

* outgoing